Case Control Studies in Medical Research. Nepal Journal of Epidemiology, [S. l.], v. 1, n. 3, p. 77–80, 2011. DOI: 10.3126/nje.v1i3.5569. Disponível em: https://nepjol.info/index.php/NJE/article/view/5569. Acesso em: 6 jul. 2026.