[1] Univ Bristol, Psychopharmacol Unit, Bristol BS31 1TD, Avon, England
[2] Univ London Imperial Coll Sci Technol & Med, Edmond Safra Chair Neuropsychopharmacol, London, England
[3] Univ W England, Bristol BS16 1QY, Avon, England
[4] Kings Coll London, Inst Psychiat, London WC2R 2LS, England
[5] Univ Southampton, Clin Neurosci Div, Southampton SO9 5NH, Hants, England
[6] Univ Leeds, Fac Biol Sci, Inst Membrane & Syst Biol, Leeds LS2 9JT, W Yorkshire, England
[7] Kings Coll Hosp London, London, England
[8] Mater Private Hosp, Dublin, Ireland
[9] Univ Surrey, Surrey Sleep Res Ctr, Guildford GU2 5XH, Surrey, England
[10] Univ Glasgow, Sackler Inst Psychol Res, Univ Glasgow Sleep Ctr, Glasgow G12 8QQ, Lanark, Scotland
[11] Evelina Childrens Hosp, Paediat Sleep Disorder Unit, London, England
[12] Univ Regensburg, Sleep Disorder & Res Ctr, D-8400 Regensburg, Germany
[13] SAAS, Edinburgh Sleep Ctr, Edinburgh, Midlothian, Scotland
[14] Duke Univ, Sch Med, Duke Sleep Disorders Lab, Durham, NC USA
[15] Betsi Cadwaladr Univ Hlth Board, Mold, Flint, Wales
[16] Univ Coll London Hosp, London, England
[17] Warneford Hosp, Univ Dept Psychiat, Oxford OX3 7JX, England
[18] CPS Clin Res Ctr, Glasgow, Lanark, Scotland