HABIBZADEH, F.; HABIBZADEH, P.; YADOLLAHIE, M. On Measuring Vaccine Effectiveness with Observational Study Designs. Acta Medica Academica, [S. l.], v. 51, n. 2, p. 134–146, 2022. DOI: 10.5644/ama2006-124.383. Disponível em: https://www.ama.ba/index.php/ama/article/view/501. Acesso em: 15 apr. 2024.