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Bol. méd. Hosp. Infant. Méx
;
51(1): 1-2, ene. 1994.
Article
in Spanish
| LILACS
| ID: lil-138859
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Bol. méd. Hosp. Infant. Méx
;
47(1): 1-3, ene. 1990.
Article
in Spanish
| LILACS
| ID: lil-95153