1.
Rev Inst Med Trop Sao Paulo
; 21(4 Suppl 3): 1-8, 1979.
Article
in Portuguese
| MEDLINE
| ID: mdl-538397
2.
Rev Chil Obstet Ginecol
; 43(5): 283-7, 1978.
Article
in Spanish
| MEDLINE
| ID: mdl-232934