1.
Bol. méd. Hosp. Infant. Méx
;
58(4): 271-284, abr. 2001. ilus, tab
Article
in Spanish
| LILACS
| ID: lil-306684
2.
Acta pediátr. Méx
;
17(2): 96-102, mar.-abr. 1996. ilus, tab
Article
in Spanish
| LILACS
| ID: lil-181538