1. Salford Royal NHS Foundation Trust, Salford, UK.
2. Royal London Hospital, Whitechapel
Road, London, E1 1BB, UK.
3. Wrightington Hospital, Hall
Lane, Appley Bridge, Wigan, Lancashire, WN6
9EP, UK
4. University of Manchester and Manchester
Academic Health Sciences Centre, Stopford
Building, Oxford Road, Manchester, M13 9PT, UK.