1.
San José; Costa Rica. Caja Costarricense de Seguro Social; dic. 1992. 22 p. tab.
Monography
in Spanish
| LILACS
| ID: lil-370282
2.
Report. med
;
1(1): 11-2, 1990. ilus
Article
in Spanish
| LILACS
| ID: lil-137530