Accepted Article This article has been accepted for publication and undergone full peer review but has not been through the copyediting, typesetting, pagination and proofreading process, which may lead to differences between this version and the Version of Record. Please cite this article as doi: 10.1111/ctr.12544 This article is protected by copyright. All rights reserved. Received Date : 03-Aug-2014 Revised Date : 28-Feb-2015 Accepted Date : 18-Mar-2015 Article type : Original Article UNOS Regional Variations in Appeal Denial Rates with Non-Standard MELD/PELD Exceptions: Support for a National Review Board ROBERT G. GISH 1,2 ROBERT J. WONG 3 GORDON HONERKAMP-SMITH 4 RONGHUI XU 4,5 ROBERT W. OSORIO 6 1 Liver Transplant Program, Stanford University Medical Center, Stanford, California 2 St. Joseph’s Hospital Medical Center/Liver Center, University of Phoenix, Phoenix, Arizona 3 Division of Gastroenterology and Hepatology, Alameda Health System-Highland Hospital, Oakland, California 4 Clinical and Translational Research Institute, University of California San Diego, San Diego, California 5 Department of Family and Preventive Medicine, University of California San Diego, San Diego, California 6 Barry S. Levin Department of Transplantation, California Pacific Medical Center, San Francisco, California