UPRETI, P.; SINGH, R. K. . Sex Ratio at Birth and its Determinants: A Cross Sectional Hospital Based Study. National Journal of Community Medicine, [S. l.], v. 8, n. 05, p. 272–276, 2017. Disponível em: https://njcmindia.com/index.php/file/article/view/739. Acesso em: 4 may. 2024.