Affiliation: | Division of Gastroenterology University of Kansas Medical Center 39th and Rainbow Kansas City, Kansas 66103;Gastroenterology Unit Link Unit, 52 Royal Liverpool Hospital Prescot Street Liverpool L7 8XP, United Kingdom;Clinique Saint-Louis, 8, rue Saint-Louis, 78300 Poissy, France;Unité de Médecine de la Reproduction, Hôpital Saint-Antoine, Paris, France |