Reid S, Tibshirani R. Regularization Paths for Conditional Logistic Regression: The clogitL1 Package. J. Stat. Soft. [Internet]. 2014 Jul. 5 [cited 2024 May 1];58(12):1-23. Available from: https://www.jstatsoft.org/index.php/jss/article/view/v058i12