JAIN, P.; SUMAN, S.; MISHRA, M. G. Comparative study of nifepidine and isoxsuprine in suppression of preterm labour. International Journal of Reproduction, Contraception, Obstetrics and Gynecology, [S. l.], v. 5, n. 11, p. 3754–3757, 2016. DOI: 10.18203/2320-1770.ijrcog20163713. Disponível em: https://www.ijrcog.org/index.php/ijrcog/article/view/325. Acesso em: 25 sep. 2025.