Philly.com | Two-Sizes-Too-Small 'Grinch' Effect Hampers Heart Transplantation Success Newswise (press release) Newswise ā Baltimore, MD ā January 8, 2014 ā Current protocols for matching donor hearts to recipients foster sex mismatching and heart size disparities, according to a first-of-its kind analysis by physicians at the University of Maryland School of ... Finding the Right Heart for Transplantation |