1.
Rev. méd. Chile
;
117(11): 1255-60, nov. 1989. tab, ilus
Article
in Spanish
| LILACS
| ID: lil-82464
2.
Rev. méd. Chile
;
117(9): 1012-7, sept. 1989. tab, ilus
Article
in Spanish
| LILACS
| ID: lil-79272