[1] Katholieke Univ Leuven, Univ Psychiat Ctr, B-3070 Kortenberg, Belgium
[2] Katholieke Univ Leuven, Fac Kinesiol & Rehabil Sci, Dept Rehabil Sci, Heverlee, Belgium
[3] Zucker Hillside Hosp, Glen Oaks, NY USA
[4] Albert Einstein Coll Med, Bronx, NY 10467 USA
[5] Maastricht Univ, Med Ctr, S Limburg Mental Hlth Res & Teaching Network, Dept Psychiat & Neuropsychol,EURON, Maastricht, Netherlands
[6] Leicester Partnership Trust, Leicester Gen Hosp, Leicester, Leics, England
[7] Univ Leicester, Leicester Royal Infirm, Dept Canc & Mol Med, Leicester LE1 7RH, Leics, England