Kathleen Y. Hwang, MD
About Kathleen Y. Hwang, MD
Kathleen Y. Hwang, MD, is a board-certified urologist with fellowship training in Male Reproductive and Sexual Health. Dr. Hwang is the Director of Male Reproductive Health and Director of Men’s Health at Penn Medicine. Her areas of expertise include the medical and surgical management of Male Infertility and Male Sexual Dysfunction. Dr. Hwang works closely with Reproductive Endocrinologists to provide comprehensive and cutting-edge care to the infertile couple. She is internationally recognized as an expert in microsurgery and penile prosthetic surgery and is often asked to teach hands on microsurgical and prosthetic surgery courses at national and international meetings.
Dr. Hwang’s primary research interests include spermatogonial stem cells, post transcriptional changes in sperm development, and her active laboratory is involved in research on the biology and mechanisms of toxic disruption of testicular function, the genetic basis of infertility, as well as understanding mechanisms of wound injury. Dr. Hwang has active funding from the NICHD and am committed to translating lab bench discoveries to the clinic for the diagnosis, prevention and treatment of male infertility.
She serves as an associate editor for Fertility & Sterility and Andrology Journals which are the most prominent journals to publish for areas of reproductive and sexual health. Dr. Hwang has received numerous awards and recognition for her leadership in reproductive urology and sexual dysfunction. She is past president of the Society for Reproductive Surgeons, the Society for the Study of Male Reproduction, and the Society for Male Reproduction and Urology. Her work in these societies has allowed her to advocate for Men’s Health on the broader scale and make positive change to both the education of the upcoming future generation of Men’s Health specialists but more importantly to improve all aspects of providing care to the Men’s Health Patient.
Titles
Attending Urologist
Director, Men’s Health, Penn Medicine, University of Pennsylvania
Director, Male Reproductive Health, Penn Medicine, University of Pennsylvania
Professor of Urology in Surgery at Penn Presbyterian Medical Center, Perelman School of Medicine, University of Pennsylvania
Professor of Obstetrics and Gynecology at Penn Presbyterian Medical Center, Perelman School of Medicine, University of Pennsylvania
Certifications
Urology – American Board of Urology
Awards and Honors
2023, Resident Education Teaching Award, University of Pittsburgh Medical Center
2021, Service Milestone Award, American Society for Reproductive Medicine
2020-2024, Star Award, American Society for Reproductive Medicine
2018, Alan D. Podis Teaching Award, Brown University
2016, Finalist, American Urological Association Urology Research Forum
2015, Finalist for Clinical Award, Damon Runyon Cancer Research Foundation
2014, Prize Scientific Paper, Society of Reproductive Surgeons
2012, Outstanding Reviewer, Fertility & Sterility
2011, Elizabeth Pickett Research Award, Society of Women in Urology
2009-2011, K12 Multidisciplinary Urologic Research Career Development Scholar, National Institutes of Health
2004, Dr. & Mrs. David Harrison Scholarship Award, Southwestern Assemblies of God University
2004, Joseph C. Addonizio Memorial Award, Westchester County Medical Center
2004, Glasgow-Rubin Achievement Award, American Medical Women's Association
2003-2004, Alpha Omega Alpha Honor Society
2001, Student Research Fellow- Neonatology, Westchester Medical Center
Leadership and Memberships
National
2021-present, Northeastern Section of the American Urological Association
- 2021-present, Abstract Review Team
2011-present, Society of Reproductive Surgeons
2009-present, Society for the Study of Male Reproduction
- 2024-2025, Immediate Past President
2009-present, Society for Male Reproduction and Urology
- 2026-2027, Past President
- 2025-2026, Immediate Past President
- 2024-2025, President
2009-present, American Society of Andrology
- 2017-present, Nominating Committee
- 2017-2025, Nominating Committee
- 2016-2025, Awards Committee
2009-present, American Society for Reproductive Medicine
- 2026, Scientific Program Chair,
- 2023-2026, Program Planning Committee
- 2022-2028, ASRM Fund Development Committee
- 2014-present, Abstract Review Committee
2007-present, Society of Women in Urology
2006-present, Endourological Society
2005-present, American Urological Association
- 2014-present, Abstract Review Team
2002-present, American Medical Women's Association
Editorial and Academic Positions
2024-present, Associate Editor, Fertility and Sterility
2021-present, Ad-hoc Reviewer, Urologic Oncology
2017-present, Ad-hoc Reviewer, European Urology Focus
2017-present, Ad-hoc Reviewer, Journal of Assisted Reproduction & Genetics
2014-present, Ad-hoc Reviewer, Biology of Reproduction
2012-present, Ad-hoc Reviewer, Andrology
2012-present, Ad-hoc Reviewer, Journal of Sexual Medicine
2010-present, Ad-hoc Reviewer, European Journal of Urology
2009-present, Ad-hoc Reviewer, Urology
2009-present, Ad-hoc Reviewer, Journal of Urology
2009-present, Ad-hoc Reviewer, Fertility & Sterility
Education & training
Medical Degree
MD - New York Medical College, Valhalla, NY
Internship
General Surgery - University of Virginia, Charlottesville, VA
Residency
Urology - University of Virginia, Charlottesville, VA
Fellowship
Male Reproductive Medicine and Surgery - Baylor College of Medicine, Houston, TX
Publications
Publications
2025
Cheng LG, White K, Jarlenski M, Hwang K. Patient-Reported Influence of Sociopolitical Issues on Post-Dobbs Vasectomy Decisions. JAMA Network Open. 2025 Jan 2;8(1):e2454430. doi: 10.1001/jamanetworkopen.2024.54430. PMID: 39792387; PMCID: PMC11724337.
Zielen AC, Peters KA, Shetty G, Gross DA, Hanna CB, Dovey SL, Wecht A, Cannon GM, Meistrich ML, Hsieh M, Hwang K, Orwig KE. Ultrasound-Guided Rete Testis Approach to Sperm Aspiration and Spermatogonial Stem Cell Transplantation in Patients with Azoospermia. medRxiv [Preprint]. 2025 Mar 26:2025.03.25.25324518. doi: 10.1101/2025.03.25.25324518. PMID: 40365444; PMCID: PMC12071507.
Panken EJ, Greenberg DR, Nam CS, Hwang K, Brannigan RE, Halpern JA. The use of immotile testicular sperm for in vitro fertilization/intracytoplasmic sperm injection: what are the outcomes? F S Rep. 2025 Mar 18;6(2):108-115. doi: 10.1016/j.xfre.2025.03.005. PMID: 40620367; PMCID: PMC12223593.
2024
Cheng LG, Miller D, Pelzman D, Wecht A, Hwang K. High rate of isolated teratospermia in a population of fertile men and the questionable clinical utility of sperm morphology. F S Rep. 2024 Jan 12;5(2):140-144. doi: 10.1016/j.xfre.2024.01.002.
Cheng LG, Liu E, Mark E, Hwang K, Chaudhry R. Prone to Stones?: Evaluating the association between food insecurity, psychiatric comorbidity, and pediatric stone management. J Pediatr Urol. 2024 Oct 28:S1477-5131(24)00540-0. doi: 10.1016/j.jpurol.2024.10.018. Epub ahead of print.
2023
Du C, Harandi AA, Hwang K, Hill J, Adler HL: Analysis of the AUA Guidelines: Strength of evidence correlates with recommendation levels. Urology Practice 10(2): 116-121, Mar. 2023 Notes: Epub Jan. 25, 2023.
Qureshi S, Hardy JJ, Pombar C, Berman AJ, Malcher A, Gingrich T, Hvasta R, Kuong J, Munyoki S, Hwang K, Orwig KE, Ahmed J, Olszewska M, Kurpisz M, Conrad DF, Jaseem Khan M, Yatsenko AN: Genomic study of TEX15 variants: prevalence and allelic heterogeneity in men with spermatogenic failure. Frontiers in Genetics 14: 1134849, May 10, 2023 Notes: eCollection 2023.
Pelzman D, Dederer G, Joolharzadeh P, Morrill C, Orwig K, Pulaski H, Hwang K: Effect of distance from fertility center on utilization of fertility preservation referral in men. JCO Oncology Practice 19(6): e935-e941, June 2023 Notes: Epub Mar. 16, 2023.
Miller D, Gurayah A, Weber A, Schuppe K, Zarli M, Dullea A, Hwang K, Ramasamy R: Seasonal variation in serum testosterone levels: Evidence from 2 large institutional databases. Urology Research & Practice 49(5): 307-311, Sept. 2023.
Kothari P, Du C, Aalami Harandi A, Hwang K, Griffith S, Kim J: Barriers to healthcare: Non-English speaking and elderly patients more likely to have retained ureteral stents. Urology 183: 46-49, Jan. 2024 Notes: Epub Nov. 24, 2023.
2022
Hardy J, Pollock N, Gingrich T, Sweet P, Ramesh A, Kuong J, Basar A, Jiang H, Hwang K, Vukina J, Jaffe T, Olszewska M, Kurpisz M, Yatsenko AN: Genomic testing for copy number and single nucleotide variants in spermatogenic failure. Journal of Assisted Reproduction & Genetics 39(9): 2103-2114, Sept. 2022 Notes: Epub July 18, 2022.
2021
Hardy JJ, Wyrwoll MJ, Mcfadden W, Malcher A, Rotte N, Pollock NC, Munyoki S, Veroli MV, Houston BJ, Xavier MJ, Kasak L, Punab M, Laan M, Kliesch S, Schlegel P, Jaffe T, Hwang K, Vukina J, Brieño-Enríquez MA, Orwig K, Yanowitz J, Buszczak M, Veltman JA, Oud M, Nagirnaja L, Olszewska M, O'Bryan MK, Conrad DF, Kurpisz M, Tüttelmann F, Yatsenko AN; GEMINI Consortium: Variants in GCNA, X-linked germ-cell genome integrity gene, identified in men with primary spermatogenic failure. Human Genetics 140(8): 1169-1182, Aug. 2021 Notes: Epub May 7, 2021.
Bianchi E, Stermer A, Nolan T, Li H, Hall S, Boekelheide K, Sigman M, Hwang K: Highly conserved sperm function-related transcripts across three species: Human, rat and mouse. Reproductive Toxicology 104: 44-51, Sept. 2021 Notes: Epub June 24, 2021.
2019
Kaminetsky JC, McCullough A, Hwang K, Jaffe JS, Wang C, Swerdloff RS: A 52- week study of dose-adjusted subcutaneous testosterone enanthate in oil self-administered via disposable auto-injector. Journal of Urology 201(3): 587-594, Mar. 2019.
Bianchi E, Boekelheide K, Sigman M, Braun JM, Eliot M, Hall SJ, Dere E, Hwang K: Spermatozoal large RNA content is associated with semen characteristics, sociodemographic and lifestyle factors. PLoS One 14(5): e0216584, May 23, 2019 Notes: eCollection 2019.
Hwang K, Guo D: Sports-related male infertility. European Urology Focus 5(6): 1143- 1145, Nov. 2019 Notes: Epub May 3, 2018.
2018
Bianchi E, Stermer A, Dere E, Reyes G, Hall S, Sigman M, Boekelheide K, Hwang K: High-quality human and rat spermatozoal RNA isolation for functional genomic studies. Andrology 6(2): 374-383, Mar. 2018 Notes: Epub Feb. 22, 2018.
Rotker K, Baird G, Alavian M, Nelson B, Sigman M, Miner M, Hwang K: Association of subcutaneous testosterone pellet therapy with developing secondary polycythemia. Asian Journal of Andrology 20(2): 195-199, Mar./Apr. 2018.
Rotker K, Thavaseelan, S, Hwang K: What's gender got to do with it: Difference in the proportion of traditionally female cases performed by general urologists of each gender. Urology 116: 35-40, June 2018 Notes: Epub Mar. 14, 2018.
2017
Bianchi E, Boekelheide K, Sigman M, Hall SJ, Hwang K: Ghrelin modulates testicular damage in a cryptorchid mouse model. PLoS One 12(5): e0177995, May 18, 2017 Notes: eCollection 2017.
Rotker K, Vigneswaran H, Omil-Lima D, Sigman M, Hwang K: Efficacy of standardized nursing fertility counseling on sperm banking rates in cancer patients. Urology 104: 90- 96, June 2017 Notes: Epub Mar. 4, 2017.
2016
Bianchi E, Boekelheide K, Sigman M, Lamb DJ, Hall SJ, Hwang K: Ghrelin inhibits postoperative adhesions via blockage of the TGF-beta signaling pathway. PLoS One 11(4): e0153968, Apr. 15, 2016 Notes: eCollection 2016.
Vigneswaran HT, Baird G, Hwang K, Renzulli J, Chan PA: Etiology of symptomatic urethritis in men and association with sexual behaviors. Rhode Island Medical Journal 99(6): 37-40, June 1, 2016.
Dere E, Huse S, Hwang K, Sigman, M, Boekelheide K: Intra- and inter-individual differences in human sperm DNA methylation. Andrology 4(5): 832-842, Sept. 2016 Notes: Epub Apr. 18, 2016.
2015
Dai J, Leone A, Mermel L, Hwang K, Pareek G, Schiff S, Golijanin D, Renzulli J: Rectal swab culture-directed antimicrobial prophylaxis for prostate biopsy and risk of postprocedure infection: A cohort study. Urology 85(1): 8-14, Jan. 2015 Notes: Epub Nov. 20, 2015.
Bianchi E, Boekelheide K, Sigman M, Lamb DJ, Hall S, Hwang K: Ghrelin ameliorates adhesions in a postsurgical mouse model. Journal of Surgical Research 101(1): 226- 234, Mar. 2016 Notes: Epub Nov. 5, 2015.
2013
Hsieh T, Pastuszak A, Hwang K, Lipshultz LI: Concomitant intramuscular human chorionic gonadotropin preserves spermatogenesis in men undergoing testosterone replacement therapy. Journal of Urology 189(2): 647-650, Feb. 2013 Notes: Epub Dec. 12, 2012.
Hwang K, Lamb DJ: The sperm penetration assay for the assessment of fertilization capacity. Methods in Molecular Biology 927: 103-111, 2013.
2012
Eisenberg ML, Murthy L, Hwang K, Lamb DJ, Lipshultz LI: Sperm counts and sperm sex ratio in male infertility patients. Asian Journal of Urology 14(5): 683-686, Sept. 2012 Notes: Epub July 30, 2012.
2011
Hwang K, Lamb DJ: In vitro production of functional sperm in mice. Asian Journal of Andrology 13(6): 791-792, Nov. 2011 Notes: Epub Sept. 12, 2011.
2010
Hwang K, Weedin J, Lamb DJ: The use of fluorescent in situ hybridization in male infertility Therapeutic Advances in Urology 2(4): 157-169, Aug. 2010.
Abstracts (includes Posters and Scientific Presentations)
2024
Cheng L, Madhavaram A, Hwang K: Living on a prayer: Comparing resident compensation to living wages. Journal of Urology 211(5S): e298. May 2024 Notes: Poster presentation at the 118th Annual meeting of the American Urological Association, AUA 2024, San Antonio, TX, May 2024.
2023
Miller D, Cheng L, Wecht A, Hwang K: The questionable clinical utility of sperm morphology: Rate of isolated teratospermia in a population of fertile Men. Journal of Urology 209(Suppl 4): e396-e397, Apr. 2023 Notes: Podium presentation at the 117th Annual Meeting of the American Urological Association, AUA 2023, Chicago, IL, May 2023.
Pelzman D, Walsh P, Tarin T, Brieño-Enriquez M, Hwang K: E-cigarette vapor exposure negatively affects spermatogenesis in mice. Journal of Urology 209(Suppl 4): e7, Apr. 2023 Notes: Podium presentation at the 117th Annual Meeting of the American Urological Association, AUA 2023, Chicago, IL, Apr. 2023.
Miller D, Weber A, Gurayah AA, Schuppe K, Zarli M, Hwang K, Ramasamy R: Seasonal variation in serum testosterone levels: Evidence from two large institutional databases. Fertility & Sterility 120(4 Suppl): e251-e252, Oct. 2023 Notes: Poster presentation at the 79th Scientific Congress of the American Society for Reproductive Medicine, New Orleans, LA, Oct. 2023.
Miller D, Gurayah A, Weber A, Schuppe K, Zarli M, Hwang K, Ramasamy R, Dullea A: Seasonal variation in serum testosterone levels: Evidence from two large institutional databases. Journal of Sexual Medicine 12(Suppl 1): i183, Feb. 2024 Notes: Presented at the 24th Sexual Medicine Society of North America Annual Fall Scientific Meeting, SMSNA 2023, San Diego, CA, Nov. 2023.
Cheng L, Miller D, Wecht A, Pelzman D, Hwang K: The questionable clinical utility of sperm morphology: Rate of isolated teratospermia in a population of fertile men. Journal of Sexual Medicine 21(Suppl 2): ii113, Mar. 2024 Notes: Presented at the 24th World Meeting on Sexual Medicine, WMSM, Dubai, Dec. 2023.
Lectures by Invitation
2025
Hwang K. “Sexual Health: Rehabilitation after Treatment for Prostate Cancer”. 4th Annual Focus on Prostate Cancer. Virtual Meeting. September 19, 2025.
Hwang K. "Managing Ureteral and Bladder Iatrogenic Injuries: What every gynecologist should know." Annual Meeting of the Society of Reproductive Surgeons, REI Bootcamp, Rochester, MN. May 2025.
Hwang K. “What is a Single Low Morphology Good For and How Do We Use it, If at All?” Invited Speaker, Society for the Study of Male Reproduction, Annual Meeting of American Urological Association. Las Vegas, NV. Apr 2025.
Hwang K. “From Stem Cells to Sperm”. Invited Speaker, Innovations in Men’s Health. Annual Meeting of American Urological Association. Las Vegas, NV. Apr 2025.
Hwang K. “Update on All Things Sperm Related: Where Are We Now?” State of the Art Urology Conference at UCLA. Los Angeles, CA. Feb 2025.
Hwang K. “High Yield Pearls for Off-Label Male Therapies for Low Testosterone”. Invited Speaker. State of the Art Urology Conference at UCLA. Los Angeles, CA. Feb 2025.
2024
Hwang K. “Klinefelter and Male Infertility.” Invited Speaker, STRIVE conference at CHOP, Philadelphia, PA. Nov 2024.
Hwang K. “Rete Testis Aspiration as a Pathway to Spermatogonial Stem Cell Transplant.” Invited Speaker, Center for Women’s Health and Reproductive Medicine Symposium, Philadelphia, PA. Oct 2024.
Hwang K. "Managing Ureteral and Bladder Iatrogenic Injuries." Annual Meeting of the Society of Reproductive Surgeons, REI Bootcamp, Cleveland, OH. May 2024.
Hwang K. "Impact of COVID on Infertility and How to Counsel Patients." Invited Plenary Speaker, Annual Meeting of American Urological Association, San Antonio, TX. May 2024.
Hwang K. "Vasectomy Reversals 2024 for the General Urologist: Patient Focuses Vasectomy Reversal Care, Reducing Costs, and Increasing Success." Invited Instructional Course, Annual Meeting of American Urological Association, San Antonio, TX. May 2024.
Hwang K. "What is the Utility of Sperm DNA Fragmentation?" Visiting Professor, Department of Obstetrics & Gynecology, REI Division, Harvard University/ Massachusetts General Hospital, Boston, MA. Mar 2024.
2023
Hwang K. "Ultrasound-Guided Rete Testis Sperm Aspiration: A Path to Spermatogonial Stem Cell Transplantation." Visiting Professor, Department of Cell Biology and Physiology, University of Kansas, Kansas City, KS. Dec 2023.
Hwang K. "Ultrasound-Guided Rete Testis Sperm Aspiration: A Path to Spermatogonial Stem Cell Transplantation." Visiting Professor, Department of Urology, University of Kansas, Kansas City, KS. Dec 2023.
Hwang K. "Updates to SSMR Andrology Fellowship Match." American Society of Reproductive Medicine (webinar). Dec 2023.
Hwang K. "Vasectomy Reversals Update: Patient Focused Vasectomy Reversal Techniques and Care, Reducing Costs and Increasing Success." American Society of Reproductive Medicine (webinar). Nov 2023.
Hwang K. "Male Sexual Dysfunction: Evaluation, Diagnosis, and Management." Chair and Faculty of Post Graduate Course: Sexual Health: Identification, Support, and Treatment, Annual Meeting of the American Society for Reproductive Medicine, New Orleans, LA. Oct 2023.
Hwang K. "Testicular Tissue Cryopreservation for Fertility Preservation: How, When, and Why?" Interactive Session Speaker, Annual Meeting of American Society for Reproductive Medicine, New Orleans, LA. Oct 2023.
Hwang K. "Hypogonadism: A Review of the Guidelines and Treatment for the Infertile Male." Chair and Faculty of Post Graduate Course: Sexual Health: Identification, Support, and Treatment, Annual Meeting of the American Society for Reproductive Medicine, New Orleans, LA. Oct 2023.
Hwang K. "How to Set Up Your Academic Practice as a Reproductive Urologist and Thrive." SMRU Fellows Symposium, Annual Meeting of American Society for Reproductive Medicine, New Orleans, LA. Oct 2023.
Editorials, Reviews, Chapters
2024
Cheng L, Miller DT, Pelzman D, Wecht A, Hwang K: High rate of isolated teratospermia in a population of fertile men and the questionable clinical utility of sperm morphology. F&S Reports 2024 (accepted for publication).
2022
Vitez SF, Ahmed BH, Brieno-Enriquez M, Hwang K: The impact of obesity and subsequent weight loss through bariatric surgery on male fertility. F&S Reviews 4(1): 38-49, Nov. 8 2022 Notes: Review.
Miller D, Hwang K: Recognition and management of iatrogenic injury to the genitourinary system. Reproductive Surgery: Current Techniques to Optimize Fertility. Lindheim SR, Petrozza JC (eds.). New York: Cambridge University Press, Page: 227-237, 2022.
2021
Shah A, Hwang K: Oolema binding: Sperm penetration assay. Manual of Sperm Function Testing in Human Assisted Reproduction. Agarwal A, Henkel R, Majzoub A (eds.). New York: Cambridge University Press, Page: 106-110, 2021 Notes: Chap. 13.
2019
Guo D, Amin A, Hwang K: Is there a role for testicular biopsy in men with varicoceles? Varicocele and Male Infertility: A Complete Guide. Esteves SC, Cho C-L, Majzoub A, Agarwal A (eds.). New York: Springer, Page: 387-394, 2019.
2018
Guo DP, Hwang K: Optimizing fertility preservation with microscopic onco-testicular sperm extraction. Fertility & Sterility 109(4): 625-626, Apr. 2018 Notes: Editorial.
Avellino GJ, Hwang K: Is in vitro organotypic culture the key to spermatogenesis of human immature testicular tissue? Fertility & Sterility 110(6): 1030-1031, Nov. 2018 Notes: Editorial.
2017
Rotker K, Vigneswaran H, Omil-Lima D, Sigman M, Hwang K: Author reply. Urology 104: 95-96, June 2017 Notes: Commentary; Epub Mar. 27, 2017.
2016
Guo D, Eisenberg, M, Hwang K: Other male sexual dysfunction. ACP Medicine, 2nd Edition. Philadelphia: American College of Physicians, 2016.
Khandwala Y, Hwang K, Eisenberg M: Erectile dysfunction. ACP Medicine, 2nd Edition. Philadelphia: American College of Physicians, 2016.
2013
Harisaran V, Cone E, Hwang K: Specific endocrinopathies and male infertility. Clinical Urological Endocrinology: Principles for Men's Health. Kavoussi PK, Costabile RA, Salonia A (eds.). New York: Springer, Page: 123-137, 2013.
Hwang K, Costabile RA: Male reproductive physiology. Surgical and Medical Management of Male Infertility. Goldstein M, Schlegel P (eds.). New York: Cambridge University Press, Page: 1-7, 2013 Notes: Sect. 1, Chap. 1.
Hwang K, Ridgeway A, Lamb DJ: Spermatogenesis. Fertility Preservation in Male Cancer Patients. Mulhall JP, Applegarth LD, Oates RD, Schlegel PN (eds.). New York: Cambridge University Press, Page: 11-22, 2013 Notes: Sect. I, Chap. 2.
2012
Hwang K, Alukal JA, Lamb DJ, Lipshultz LI: Processing and cryopreservation of testicular sperm. Textbook of Assisted Reproductive Technologies, Fourth Edition. Gardner DK, Weissman A, Howles CM, Shoham Z (eds.). Boca Raton, FL: CRC Press, Page: 258- 262, 2012 Notes: Vol. 2, Sect. XII, Chap. 50.
Hwang K, Avila D, Gittens P, Lipshultz LI: Impact of paternal exposure to gonadotoxins on embryo and offspring and the male evaluation. Fertility Preservation: Emerging Technologies and Clinical Applications. Seli E, Agarwal A (eds.). New York: Springer, Page: 271-288, 2012 Notes: Part III, Chap. 21.
2011
Hwang K, Lamb DJ: Words of wisdom. Re: Testicular spermatozoa have statistically significantly lower DNA damage compared with ejaculated spermatozoa in patients with unsuccessful oral antioxidant treatment. European Urology. Commentary, 59(4): 657-658, Apr. 2011 Notes: Epub Mar. 1, 2011.
2010
Hwang K, Lamb DJ: Words of wisdom. RE: Fertility preservation in adolescent males: Experience over 22 years at Rouen University Hospital. European Urology 57(1): 173- 174, Jan. 2010 Notes: Commentary.
Hwang K, Lamb DJ: Molecular mechanism of antioxidants in male infertility. Antioxidants in the Medical and Surgical Treatment of Male Infertility. Parekattil SJ, Agarwal A (eds.). New York: Springer, 2010.
Hwang K, Lamb DJ: Diagnostic testicular biopsy before varicocele repair plays a realistic and important role. Fertility & Sterility 95(2): 488, Feb. 2011 Notes: Commentary; Epub Dec. 23, 2010.