1.
Gac. méd. Caracas
;
106(3): 380-2, jul.-sept. 1998. ilus
Article
in Spanish
| LILACS
| ID: lil-256819
2.
Gac. méd. Caracas
;
106(3): 383-5, jul.-sept. 1998. ilus
Article
in Spanish
| LILACS
| ID: lil-256820