Demographic correlates of gestational age at booking among antenatal clinic attendees in secondary healthcare facilities in semi-urban/rural areas of Rivers state, Southern Nigeria. The Nigerian Health Journal, [S. l.], v. 22, n. 3, p. 305–310, 2022. DOI: 10.60787/tnhj.v22i3.607. Disponível em: https://www.tnhjph.com/index.php/tnhj/article/view/607. Acesso em: 9 may. 2025.