Frequency of cannabis use and symptoms of anxiety and depression: a cross-sectional analysis of the Colorado cannabis users health cohort.

Christine M Steeger, Poojashree Tandukar, Karin F Hoth, Mark Aloia, Fred Wamboldt, Peter Castaldi, Sunita Sharma, Nancy Lorenzon, Laura E Crotty Alexander, Jost Klawitter, Cristina Sempio, Gregory L Kinney, Meghan D Althoff, Gina R Kruse, Russell P Bowler