AUTHOR=Cousijn Janna TITLE=Embracing comorbidity: a way toward understanding the role of motivational and control processes in cannabis use disorders JOURNAL=Frontiers in Psychology VOLUME=6 YEAR=2015 URL=https://www.frontiersin.org/journals/psychology/articles/10.3389/fpsyg.2015.00677 DOI=10.3389/fpsyg.2015.00677 ISSN=1664-1078