| Affiliation: | Current affiliations: Division of Gastroenterology (X.D., J.M.B., E.J.S., S.A.G., P.M., A.N.K., S.V.K.), Department of Molecular and Comparative Pathobiology (K.L.G.), Department of Surgery (L.A., M.R.M.), and Department of Radiology (L.J.P., S.K.R.), Johns Hopkins School of Medicine, Baltimore, Maryland, USA, Department of Digestive Diseases (X.D.), Hôpital Lariboisière, Paris, France, Cook Endoscopy Inc (V.C.S.), Winston-Salem, North Carolina, USA, Department of Medicine (P.M.), University of Puerto Rico, San Juan, Puerto Rico |
