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Gac. méd. Méx
;
136(1): 31-44, ene.-feb. 2000. graf, CD-ROM
Article
in Spanish
| LILACS
| ID: lil-304299
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Ginecol. obstet. Méx
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64343-6: s.p, jul. 1996.
Article
in Spanish
| LILACS
| ID: lil-376277