KAWAGUCHI, A.; KOCH, G. G. sanon: An R Package for Stratified Analysis with Nonparametric Covariable Adjustment. Journal of Statistical Software, [S. l.], v. 67, n. 9, p. 1–37, 2015. DOI: 10.18637/jss.v067.i09. Disponível em: https://www.jstatsoft.org/index.php/jss/article/view/v067i09. Acesso em: 15 aug. 2022.