AUTHOR=Potvin Stéphane , Khazaal Yasser , Benyamina Amine , Potenza Marc N. TITLE=Editorial: Purple Haze: Issues on Cannabis Legalization JOURNAL=Frontiers in Psychiatry VOLUME=12 YEAR=2021 URL=https://www.frontiersin.org/journals/psychiatry/articles/10.3389/fpsyt.2021.796032 DOI=10.3389/fpsyt.2021.796032 ISSN=1664-0640