[1] Univ Bern, Fac Med, Bern, Switzerland
[2] Psychiat Univ Hosp Zurich, Div Psychiat Res & Psychogeriatr Med, Zurich, Switzerland
[3] Univ Porto, Hosp Magalhaes Lemos, P-4100 Oporto, Portugal
[4] Univ Antwerp, Collaborat Antwerp Psychiat Res Inst, B-2020 Antwerp, Belgium
[5] Psychiat Clin Minsk City, Dept Psychiat, Minsk, BELARUS
[6] Univ Athens, Evgenid Therapeftir, Athens 11528, Greece
[7] Univ Clin Child & Adolescent Psychiat & Psychothe, Vienna, Austria
[8] Hop La Pitie Salpetriere, Serv Pedopsychiat, Paris, France
[9] Barnet Enfield & Haringey NHS Trust, London, England