[1] United Arab Emirates Univ, Coll Med & Hlth Sci, Dept Psychiat, Al Ain, U Arab Emirates
[2] Ain Shams Univ, Okasha Inst Psychiat, Neuropsychiat Dept, Cairo, Egypt
[3] Kings Coll London, Inst Psychiat, London, England
[4] Oxford Hlth NHS Fdn Trust, Oxford, England
[5] Univ Oxford, Oxford, England
[6] United Arab Emirates Univ, Coll Med & Hlth Sci, Dept Psychiat, POB 15551, Al Ain, U Arab Emirates