[1] Univ Brighton, Brighton & Sussex Med Sch, Dept Primary Care & Publ Hlth, Brighton, England
[2] Sussex Partnership NHS Fdn Trust, Sussex Educ Ctr, Res & Dev, Hove, England
[3] Univ Kent, Ctr Hlth Serv Studies, Canterbury, Kent, England
[4] Univ Sussex, Sch Psychol, Brighton, England
[5] Kings Coll London, Inst Psychiat Psychol & Neurosci, Dept Child & Adolescent Psychiat, London, England
[6] South London & Maudsley NHS Fdn Trust, NIHR Maudsley Biomed Res Ctr, London, England
[7] Kings Coll London, London, England