1. Behavioral Addictions Unit, Area of Mental Health Care, Consorci Sanitari de Terrassa, 08227 Terrassa, Spain
2. Faculty of Medicine and Health Sciences, Universidad Internacional de Catalunya, 08017 Barcelona, Spain
3. Area of Mental Health Care, Consorci Sanitari de Terrassa, 08227 Terrassa, Spain
4. Community Rehabilitation Service, Area of Mental Health Care, Consorci Sanitari de Terrassa, 08227 Terrassa, Spain
5. Hematological Cytology, Pathological Anatomy Service, Hospital Universitario de Bellvitge, 08907 Barcelona, Spain
6. Department of Epidemiology, Consorci Sanitari de Terrassa, 08227 Terrassa, Spain