1.
Rev Gastroenterol Mex
; 51(4): 233-6, 1986.
Article
in Spanish
| MEDLINE
| ID: mdl-3451346
2.
Rev. méd. Hosp. Gen. Méx
; 44(6): 224-36, 1981.
Article
in Spanish
| LILACS
| ID: lil-12028