Knai Cécile, Petticrew Mark, Mays Nicholas, Durand Mary Alison, Eastmure Elizabeth
Policy Innovation Research Unit, Faculty of Public Health and Policy, London School of Hygiene and Tropical Medicine, London WC1E 7HT, UK
Policy Innovation Research Unit, Faculty of Public Health and Policy, London School of Hygiene and Tropical Medicine, London WC1E 7HT, UK.
BMJ. 2015 Apr 21;350:h2063. doi: 10.1136/bmj.h2063.