Charlton Victoria, Littlejohns Peter, Kieslich Katharina, Mitchell Polly, Rumbold Benedict, Weale Albert, Wilson James, Rid Annette
Department of Global Health and Social Medicine, King's College London.
Department of Primary Care and Public Health Sciences, King's College London.
BMJ. 2017 Mar 22;356:j1402. doi: 10.1136/bmj.j1402.