1.
Gac. méd. Méx
;
141(1): 43-46, ene.-feb. 2005. ilus, tab
Article
in Spanish
| LILACS
| ID: lil-632109
2.
Gac. méd. Méx
;
140(6): 629-631, nov.-dic. 2004. ilus
Article
in Spanish
| LILACS
| ID: lil-632239