1.
Rev. colomb. gastroenterol
;
24(4): 336-339, Oct.-Dec. 2009.
Article
in English, Spanish
| LILACS
| ID: lil-540336
2.
Rev. colomb. gastroenterol
;
24(supl.1): 13s-20s, mar. 2009. ilus, tab
Article
in English, Spanish
| LILACS
| ID: lil-636156