[1] Appl Res Collaborat West NIHR ARC West Univ Hosp, Natl Inst Hlth Res, 9th Floor, Bristol BS1 2NT, Avon, England
[2] Univ Bristol, Bristol Med Sch, Ctr Acad Primary Care CAPC, Populat Hlth Sci, Canynge Hall,39 Whatley Rd, Bristol BS8 2PS, Avon, England
[3] Univ Bristol, NIHR Hlth Protect Res Unit HPRU Behav Sci & Evalu, Bristol, Avon, England
[4] Univ Bath, Dept Psychol, Bath, Avon, England
[5] Univ Southampton, Sch Psychol, Southampton, Hants, England
[6] Univ Southampton, Fac Med, Southampton, Hants, England
[7] Kings Coll London, Sch Populat Hlth & Environm Sci, London, England
[8] Publ Hlth England, Emergency Response Dept, Behav Sci Team, Salisbury, Wilts, England
[9] Univ Bristol, Sch Psychol Sci, Bristol, Avon, England