1.
Rev Gastroenterol Mex
; 68 Suppl 3: 56-8, 2003 Nov.
Article
in English
| MEDLINE
| ID: mdl-15146797
2.
Rev Gastroenterol Mex
; 68 Suppl 3: 73-5, 2003 Nov.
Article
in English
| MEDLINE
| ID: mdl-15146805