1.
Acta méd. colomb
;
13(4): 282-4, jul.-ago. 1988.
Article
in Spanish
| LILACS
| ID: lil-292888
2.
Acta méd. colomb
;
13(4): 297-9, jul.-ago. 1988.
Article
in Spanish
| LILACS
| ID: lil-292893