[1] Anglo European Coll Chirpract, Inst Musculoskeletal Res & Clin Implementat, Bournemouth BH5 2DF, Dorset, England
[2] British Sch Osteopathy, London, England
[3] Univ London Royal Holloway & Bedford New Coll, Dept Psychol, Egham TW20 0EX, Surrey, England
[4] Univ Keele, Primary Care Sci Res Ctr, Keele ST5 5BG, Staffs, England
[5] Univ London Queen Mary Coll, Sch Med & Dent, Inst Hlth Sci Educ, Hlth Sci Ctr, London E1 4NS, England