GAO, D.; GRUNWALD, G. K.; XUB, S. A Simple Approach to Sample Size Calculation for Count Data in Matched Cohort Studies. International Journal of Statistics in Medical Research, [S. l.], v. 3, n. 3, p. 321–330, 2014. DOI: 10.6000/1929-6029.2014.03.03.11. Disponível em: http://lifescienceglobalca.com/index.php/ijsmr/article/view/2266. Acesso em: 11 jan. 2025.