Relationship between placental weight, birth weight, maternal biosocial characteristics and placental-to-birth-weight ratio. Medical Journal of Zambia, [S. l.], v. 47, n. 4, p. 281–287, 2021. DOI: 10.55320/mjz.47.4.121. Disponível em: https://mjz.co.zm/index.php/mjz/article/view/121.. Acesso em: 7 sep. 2024.