1.
Rev. colomb. obstet. ginecol
;
34(2): 115-120, 1983.
Article
in Portuguese
| LILACS
| ID: lil-18006
2.
Rev. colomb. obstet. ginecol
;
33(5): 309-16, 1982.
Article
in Spanish
| LILACS
| ID: lil-13517