Comparison of Pregnancy Outcomes of Booked and Unbooked Patients in the Niger Delta. The Nigerian Health Journal, [S. l.], v. 23, n. 1, p. 506–512, 2023. DOI: 10.60787/tnhj.v23i1.649. Disponível em: https://tnhjph.com/index.php/tnhj/article/view/649. Acesso em: 1 jun. 2025.