1.
Acta gastroenterol. latinoam
;
25(5): 305-12, 1994.
Article
in Spanish
|
LILACS-Express
| LILACS, BINACIS
| ID: biblio-1157279
2.
Acta gastroenterol. latinoam
;
24(5): 305-12, 1994.
Article
in Spanish
| LILACS
| ID: lil-143906