YU, J.; ZHOU, H.; LIU, X.; ZOU, F.; WILLKE, R. J. Adjusting Complex Heterogeneity in Treatment Assignment in Observational Studies. International Journal of Statistics in Medical Research, [S. l.], v. 3, n. 2, p. 203–214, 2014. DOI: 10.6000/1929-6029.2014.03.02.13. Disponível em: https://www.lifescienceglobal.com/pms/index.php/ijsmr/article/view/1966. Acesso em: 4 may. 2024.