Garcia-Hernandez, Alberto, and Dimitris Rizopoulos. “%JM: A SAS Macro to Fit Jointly Generalized Mixed Models for Longitudinal Data and Time-to-Event Responses”. Journal of Statistical Software 84, no. 12 (April 28, 2018): 1–29. Accessed November 27, 2021. https://www.jstatsoft.org/index.php/jss/article/view/v084i12.