1.
Santa Cruz de la Sierra; Charagua-Cordillera; sept. 1991. 45 p. tab.
Monography
in Spanish
| LILACS
| ID: lil-174653
2.
Acta méd. costarric
;
33(1): 3-8, ene. 1989. ilus
Article
in Spanish
| LILACS
| ID: lil-107539