Study Design in Medical Research. Ibrahim Cardiac Medical Journal, [S. l.], v. 2, n. 2, p. 41–44, 2012. DOI: 10.3329/icmj.v2i2.52855. Disponível em: https://banglajol.info/index.php/ICMJ/article/view/52855. Acesso em: 3 jul. 2026.