PHINYO P, PATUMANOND J. Roles of Variables for Causal Inference in Clinical Research. Journal of The Department of Medical Services, [S. l.], v. 44, n. 4, p. 155–160, 2019. Disponível em: https://he02.tci-thaijo.org/index.php/JDMS/article/view/246730. Acesso em: 20 apr. 2024.