AUTHOR=Serafini Gianluca , Pompili Maurizio , Innamorati Marco , Temple Elizabeth C., Borgwardt Stefan , Girardi Paolo TITLE=The Association between Cannabis Use, Mental Illness, and Suicidal Behavior: What is the Role of Hopelessness? JOURNAL=Frontiers in Psychiatry VOLUME=4 YEAR=2013 URL=https://www.frontiersin.org/journals/psychiatry/articles/10.3389/fpsyt.2013.00125 DOI=10.3389/fpsyt.2013.00125 ISSN=1664-0640