by Weber, Jr, F H, Richards, R D, McCallum, R W
Published in The American journal of gastroenterology (01.04.1993)

by WEBER, F. H, SEARS, R. J, KENDALL, B, PRUETT, T. L, SHAFFER, H. A, YEATON, P
Published in Digestive diseases and sciences (01.06.1997)

by Weber, Jr, F H, Frierson, Jr, H F, Myers, B M
Published in Journal of clinical gastroenterology (01.01.1992)