WEKERE, F. C. C.; JOHN, D. H.; CLEMENT-WEKERE, G. A. F.; IWO-AMAH, R. S. Prevalence, trend and outcome of twin pregnancy in Rivers State University Teaching Hospital, Southern Nigeria. International Journal of Reproduction, Contraception, Obstetrics and Gynecology, [S. l.], v. 10, n. 7, p. 2571–2577, 2021. DOI: 10.18203/2320-1770.ijrcog20212641. Disponível em: https://www.ijrcog.org/index.php/ijrcog/article/view/10362. Acesso em: 4 dec. 2025.