[1] Ankara Univ, Fac Med, Dept Psychiat, Div Consultat Liaison Psychiat, Ankara, Turkey
[2] Univ Hlth Sci, Dept Psychiat, Dr Abdurrahman Yurtaslan Ankara Oncol Training &, Ankara, Turkey
[3] Baskent Univ, Fac Med, Dept Psychiat, Ankara, Turkey
[4] Univ Hlth Sci, Ankara Numune Training & Res Hosp, Dept Anesthesiol & Reanimat, Ankara, Turkey
[5] Ankara Univ, Fac Med, Dept Biostat, Ankara, Turkey
[6] Ankara Univ, Fac Med, Dept Psychiat, Ankara, Turkey