SOLWAYO NGWENYA. Heterotopic Pregnancy. Gynecology and Obstetrics Research, [S. l.], v. 2, n. 4, p. 89–92, 2015. DOI: 10.17140/GOROJ-2-120. Disponível em: https://openventio.us/index.php/GOR/article/view/1374. Acesso em: 8 nov. 2026.