WIDYA, Andre C; LOHO, Maria F; WANTANIA, John J E. The Role of Progesterone Induced Blocking Factor in Threatened Abortion. Indonesian Journal of Obstetrics and Gynecology, [S. l.], v. 5, n. 4, p. 193–198, 2017. DOI: 10.32771/inajog.v5i4.557. Disponível em: https://www.inajog.com/index.php/journal/article/view/557. Acesso em: 9 mar. 2026.