Multimodal treatment for smoking cessation with varenicline in alcoholic, methadone-maintained, and psychotic patients: A one-year follow-up oleh Antonia Raich, Cristina Pinet, Montse Ballbè, Silvia Mondon, Rosa Tejedor, Anna Arnau, Esteve Fernández, on behalf of the Tobacco Group of the Catalan Network for Addiction Treatment*