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Gastroenterol. latinoam
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22(3): 281-283, jul.-sept. 2011. tab
Article
in Spanish
| LILACS
| ID: lil-661675
2.
Trib. méd. (Bogotá)
;
78(6): 21-3, sept. 1988. tab
Article
in Spanish
| LILACS
| ID: lil-83812