Authors’ contributions
CM
RECRUITMENT
GM and LMH were responsible for the data management, data analysis, and manuscript writing. EFG and SVR supervised the first author. SVR, EFG, FF, EMB, KK, AM, JB, KL, and JS developed the concept and design of the study. JK and ED conducted recruitment and assessment, and SVR, BH, CM, and IH supported the recruitment and assessment. CS and AM were responsible for the data on diagnoses, medication, and multimorbidity. FF drafted the first version of the intervention and accompanied its further development. FF, EMB, and LL supervised the intervention, and EMB and LL were responsible for the formative evaluation. SVR, KKo, ED, and AG were responsible for the project management and coordination of the study. All authors contributed to interpretation of the data and read and approved the final version of the manuscript.