Goetghebeur E, le Cessie S, De Stavola B, Moodie EE, Waernbaum I. Formulating causal questions and principled statistical answers. Statistics in Medicine. 2020;39:4922–4948. https://doi.org/10.1002/sim.8741
Liu L, Choi J, Musoro JZ, et al. Single-arm studies involving patient-reported outcome data in oncology: a literature review on current practice. Lancet Oncol. 2023;24(5):e197-e206. doi:10.1016/S1470-2045(23)00110-9
Thomassen, D., Roychoudhury S., Delphin Amdal C., Reynders D., Musoro J. , Sauerbrei W., Goetghebeur E., and le Cessie S. and on behalf of SISAQOLIMI Work Package 3 “The Role of the Estimand Framework in the Analysis of Patient-Reported Outcomes in Single-Arm Trials.” BMC Medical Research Methodology (2024) 24:290 https://doi.org/10.1186/s12874-024-02408-x
Thomassen, D., Roychoudhury S., Delphin Amdal C., Reynders D., Musoro J. , Sauerbrei W., Goetghebeur E., and le Cessie S. and on behalf of SISAQOLIMI Work Package 3. ``Handling missing values in patient-reported outcome data in the presence of intercurrent events". BMC Medical Research Methodology (2025) 25:56 https://doi.org/10.1186/s12874-025-02510-8
Reynders D., Thomassen D., Roychoudhury S., Delphin Amdal C., Musoro J., Sauerbrei W., le Cessie S. and Goetghebeur E. and on behalf of SISAQOLIMI Work Package 3. ``Evaluating treatment effects on longitudinal outcomes with attrition due to death: Methods for While-Alive estimands with a case study in Quality of Life." arXiv:2509.25548