Anota, A., M. Savina, C. Bascoul-Mollevi, and F. Bonnetain. “QoLR: An R Package for the Longitudinal Analysis of Health-Related Quality of Life in Oncology”. Journal of Statistical Software, vol. 77, no. 12, May 2017, pp. 1-30, doi:10.18637/jss.v077.i12.