Helen S Marshall, Mark McMillan, Ann Koehler, Andrew Lawrence, Jenny M MacLennan, Martin C J Maiden, Mary Ramsay, Shamez N Ladhani, Caroline Trotter, Ray Borrow, Adam Finn, Thomas Sullivan, Peter Richmond, Charlene M Kahler, Jane Whelan, Kumaran Vadivelu
BMJ Open. 2018; 8(7): e020988. Published online 2018 Jul 10. doi: 10.1136/bmjopen-2017-020988