Affiliation: | (1) From the Departments of Medicine and Physiology, Gastroenterology Division, Ross 918, The Johns Hopkins University School of Medicine, Baltimore, Maryland 21205–2195, USA, US;(2) Department of Biological Chemistry, College of Medicine, University of California, Irvine, California 92717, USA, US;(3) Departments of Pediatrics, Medicine, and Surgery, Center for Medical Genetics, The Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, USA, US |