Balboa, Vanesa, and Jacobo de Uña-Álvarez. “Estimation of Transition Probabilities for the Illness-Death Model: Package TP.Idm”. Journal of Statistical Software 83, no. 10 (February 27, 2018): 1–19. Accessed April 19, 2024. https://www.jstatsoft.org/index.php/jss/article/view/v083i10.