1. From the Academic Unit of Elderly Care and Rehabilitation, Bradford Teaching Hospitals NHS Foundation Trust (A. Forster, J.Y., K.C., K.M., R.B.), Leeds Institute of Clinical Trials Research, Clinical Trials Research Unit (J.N., I.H., S.A., A. Farrin), and Leeds Institute of Health Sciences (J.M.), University of Leeds, Leeds, United Kingdom; Institute of Psychiatry, King’s College London, London, United Kingdom (A.P.); and Personal Social Services Research Unit, London School of Economics and...