by Guzmán Valdivia Gómez, G, Chavelas Lluck, M, Medina González, E
Published in Revista de gastroenterología de México (01.10.1996)

by GUZMAN VALDIVIA GOMEZ, G, SOTO GUERRERO, T, CHAVELAS LLUCK, M, JUAREZ DELGADO, F, WITTMANN, D. H
Published in World journal of surgery (1999)

by Valdivia-Gómez, G G, Suárez, R, Chavelas-Lluck, M A, Caneda-Mejía, M, Zaga-Minian, I
Published in Gaceta médica de México (01.07.1995)