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Matthew J. Ryan, MD

Attending Physician

Assistant Professor of Pediatrics, Perelman School of Medicine at the University of Pennsylvania



Ryan M, Underkoffler L, Dutton J, Loomes K: Delayed Biliary Development Leads to Bile Duct Proliferation and Portal Tract Expansion in Mice Heterozygous for Radical Fringe and Jag1 Alleles. Poster Presentation, AASLD annual meeting Boston, MA November 2012.


2006, 2nd place, Komorov Competition-basic science
2006-2008, CDHNF Young Investigator's Development Award

Editorial and Academic Positions

Editorial positions

2011, Journal of Clinical Investigation, Ad hoc reviewer
2010, Human Immunology, Ad hoc reviewer

Academic and institutional committees

2011-present, Division of GI, Hepatology and Nutrition Second Opinion Committee


Memberships in professional organizations


2007-present, The American Association for the Study of Liver Diseases
2003-present, The American Gastroenterology Association
2003-present, North American Society of Pediatric Gastroenterology, Hepatology and Nutrition
2000-present, American Academy of Pediatrics

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