Screening and managing cannabis use: comparing GP's and nurses' knowledge, beliefs, and behavior
Substance Abuse Treatment Prevention and Policy (2012) - Comment
pubmed: 22827931  doi: 10.1186/1747-597x-7-31  issn: 1747-597x 

Melissa M Norberg, Peter Gates, Paul Dillon, David J Kavanagh, Ramesh Manocha, Jan Copeland