VOCK, David; DAVIDIAN, Marie; TSIATIS, Anastasios. SNP_NLMM: A SAS Macro to Implement a Flexible Random Effects Density for Generalized Linear and Nonlinear Mixed Models. Journal of Statistical Software, Code Snippets, [S. l.], v. 56, n. 2, p. 1–21, 2014. DOI: 10.18637/jss.v056.c02. Disponível em: https://www.jstatsoft.org/index.php/jss/article/view/v056c02. Acesso em: 30 mar. 2026.