[1] Parnassia Psychiatric Institute,Dual Diagnosis Center (CDP) Palier
[2] Erasmus University Medical Center,Department of Psychiatry
[3] Epidemiological and Social Psychiatric Research Institute,Parnassia Addiction Research Centre (PARC)
[4] Bavo-Europoort Mental Health Care,undefined
[5] Brijder Addiction Treatment,undefined
[6] Parnassia Psychiatric Institute,undefined