1. From the Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York (M.B., R.J.D.); the Section on Gastroenterology and Hepatology, Wake Forest University–North Carolina Baptist Medical Center, Winston-Salem (H.L.B.); Schiff Center for Liver Diseases, University of Miami Miller School of Medicine, Miami (C.L.); the Division of Gastroenterology and Hepatology and the Porphyria Center, University of Texas Medical Branch, Galveston (K.E.A.); Liver Center and Porphyria...