Fareed Iqbal, MBChB, BMedSci (Hons), MRCS (Eng), Sir Alan Park's Department of Physiology, St Mark's Hospital, London, England.
Valerie Van der Ploeg, MSc, Sir Alan Department of Physiology, St Mark's Hospital, London, England.
Franklin Adaba, MRCS (Eng), MBBS, Sir Alan Park's Department of Physiology, St Mark's Hospital, London, England.
Alan Askari, MBChB, MRCS (Eng), Surgical Epidemiology, Trials and Outcomes Centre (SETOC), St Mark's Hospital, London, England.
Jamie Murphy, PhD, MB ChirB, FRCS, Department of Surgery and Cancer, Imperial College London, St Mary's Hospital, Paddington, London, England.
R. John Nicholls, MS, FRCS, Sir Alan Park's Department of Physiology, St Mark's Hospital, London, England.
Carolynne Vaizey, MBBS, FCS, FRCS, Sir Alan Park's Department of Physiology, St Mark's Hospital, London, England.
Correspondence: Fareed Iqbal, MBChB, BMedSci (Hons), MRCS (Eng), Sir Alan Park's Department of Physiology, 4th Floor, St Mark's Hospital, London, England ([email protected]).