David S Kessler, Stephanie J MacNeill, Deborah Tallon, Glyn Lewis, Tim J Peters, William Hollingworth, Jeff Round, Alison Burns, Carolyn A Chew-Graham, Ian M Anderson, Tom Shepherd, John Campbell, Chris M Dickens, Mary Carter, Caroline Jenkinson, Una Macleod, Helen Gibson, Simon Davies, Nicola J Wiles
BMJ. 2018; 363: k4218. Published online 2018 Oct 31. doi: 10.1136/bmj.k4218