Ford Alexander C, Moayyedi Paul
Leeds Gastroenterology Institute, Leeds General Infirmary, Leeds, UK Leeds Institute of Biomedical and Clinical Sciences, Leeds University, Leeds, UK.
Farncombe Family Digestive Health Research Institute, McMaster University, McMaster University Medical Centre, Hamilton, Ontario, Canada
BMJ. 2014 May 20;348:g3320. doi: 10.1136/bmj.g3320.