[1] Catholic Univ Korea, Uijeongbu St Marys Hosp, Coll Med, Dept Psychiat, 222 Banpo Daero, Seoul 06591, South Korea
[2] Univ Bern, Univ Hosp Psychiat & Psychotherapy, Bern, Switzerland
[3] Catholic Univ Korea, Coll Med, Uijeongbu St Marys Hosp, Dept Psychiat, 222 Banpo Daero, Seoul 06591, South Korea