Lendle SD, Schwab J, Petersen ML, van der Laan MJ. ltmle: An R Package Implementing Targeted Minimum Loss-Based Estimation for Longitudinal Data. J. Stat. Soft. [Internet]. 2017 Oct. 16 [cited 2024 Apr. 18];81(1):1-21. Available from: https://www.jstatsoft.org/index.php/jss/article/view/v081i01