1. Franklin PD, Ayers DC, Berliner E. The essential role of patient-centered registries in an era of electronic health records. NEJM Catal. 2018 [cited 2018 Nov 20]; Available from: https://catalyst.nejm.org/force-tjr-patient-centered-registries/
2. Johnston BC, Patrick DL, Thorlund K, Busse J, da Costa B, Schunemann H, et al. Patient-reported outcomes in meta-analyses, part 2: methods for improving interpretability for decision-makers. Health Qual Life Outcomes. 2013;11(211):1–9.
3. Bell MB, Fairclough DL. Practical and statistical issues in missing data for longitudinal patient-reported outcomes. Stat Methods Med Res. 2014;23(5):440–9.
4. Schafer JL. Analysis of incomplete multivariate data. London: Chapman and Hall; 1997.
5. Molenberghs G, Kenward MG. Missing data in clinical studies. West Sussex: John Wiley & Sons; 2007.