Gursharan Kaur Nandhra

This is an early access version, the complete PDF, HTML, and XML versions will be available soon. Open AccessSystematic Review by 1,2,*, Phakanant Chaichanavichkij 1, 1,2 and 1 1 National Bowel Research Centre and GI Physiology Unit, Blizard Institute, Centre for Neuroscience, Surgery & Trauma, Queen Mary University of London, London E1 4NS, UK 2 Clinical Physics, Barts Health NHS Trust, The Royal London Hospital, London E1 2BL, UK * Author to whom correspondence should be addressed. J. Clin. Med.