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Gac. méd. Méx
;
136(3): 221-247, mayo-jun. 2000. ilus, tab, CD-ROM
Article
in Spanish
| LILACS
| ID: lil-304331
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Gac. méd. Méx
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131(4): 481-4, jul.-ago. 1995. tab
Article
in Spanish
| LILACS
| ID: lil-174081