Rockwood NJ, Jeon M. Estimating complex measurement and growth models using the R package PLmixed. Multivar Behav Res. 2019 Mar;54(2):288-306. doi: 10.1080/00273171.2018.1516541
Zhou X, Wang J, Zhang J, Copley-Merriman C, Torigoe Y, Reyes C, Seymour JF, Offner FC, Trneny M, Salles GA. Symptoms and toxicity of rituximab maintenance relative to observation following immunochemotherapy in patients with follicular lymphoma. Hematology. 2015 Apr;129(36). doi: 10.1179/1607845414Y.0000000179