1. From the Faculty of Translational Health Sciences (C.A.B.), University of Bristol (J.I., K.B., R.K.), and the Bristol Haematology and Oncology Centre (C.A.B.) and the Research Design Service (R.G.), University Hospitals Bristol and Weston NHS Foundation Trust, Bristol, the Centre for Trials Research, Cardiff University (J.P., I.T.), and the Department of Haematology, Cardiff and Vale University Health Board (R.R.), Cardiff, Leeds Teaching Hospitals NHS Trust, Leeds (Q.H.), Glasgow Royal Infirmary,...