1.
Rev Chil Obstet Ginecol
; 50(5): 396-402, 1985.
Article
in Spanish
| MEDLINE
| ID: mdl-2883709
2.
Rev Chil Obstet Ginecol
; 49(6): 434-8, 1984.
Article
in Spanish
| MEDLINE
| ID: mdl-6545830