1 School of Medicine and Manchester Academic Health Sciences Centre, University of Manchester, Manchester; Department of Diabetes and Endocrinology, Salford Royal Hospital, Salford. Email: [email protected].
2 RES Consortium, Andover, Hampshire.
3 Mersey Deanery Psychiatry Rotation, Liverpool.
4 Department of Clinical Biochemistry, University Hospitals of the North Midlands.
5 Warwick Medical School, Warwick.
6 Choosing Wisely steering group of the Academy of Medical Royal Colleges, London.