LENDLE, S. D.; SCHWAB, J.; PETERSEN, M. L.; VAN DER LAAN, M. J. ltmle: An R Package Implementing Targeted Minimum Loss-Based Estimation for Longitudinal Data. Journal of Statistical Software, [S. l.], v. 81, n. 1, p. 1–21, 2017. DOI: 10.18637/jss.v081.i01. Disponível em: https://www.jstatsoft.org/index.php/jss/article/view/v081i01. Acesso em: 21 may. 2022.