Steen, Johan, Tom Loeys, Beatrijs Moerkerke, and Stijn Vansteelandt. “Medflex: An R Package for Flexible Mediation Analysis Using Natural Effect Models”. Journal of Statistical Software 76, no. 11 (February 27, 2017): 1–46. Accessed November 24, 2024. https://www.jstatsoft.org/index.php/jss/article/view/v076i11.