1. Department of Psychiatry, University of Texas Medical School at Houston, Houston, TX, USA
2. Center for Neurobehavioral Research on Addictions, Houston, TX, USA
3. Department of Psychology, Hasan Kalyoncu University, Gaziantep, Turkey
4. Department of Psychology, Isik University, Istanbul, Turkey
5. Department of Psychiatry, Bagcilar Research & Training Hospital, Health Sciences University, Istanbul, Turkey
6. Department of Educational Sciences, Division of Guidance and Psychological Counseling, Hacettepe University, Ankara, Turkey