OLI, U.; UPRETI, R.; OJHA, N.; SINGH, M. Risk factors of early and late preterm birth. Nepal Medical College Journal, [S. l.], v. 23, n. 2, p. 179–184, 2021. DOI: 10.3126/nmcj.v23i2.38583. Disponível em: https://www.nepjol.info/index.php/nmcj/article/view/38583. Acesso em: 6 may. 2024.