PT - JOURNAL ARTICLE AU - Michael J. Armstrong TI - Canada’s provinces and territories should disclose cannabis data to support research AID - 10.1503/cmaj.202041 DP - 2021 Mar 08 TA - Canadian Medical Association Journal PG - E341--E342 VI - 193 IP - 10 4099 - http://www.cmaj.ca/content/193/10/E341.short 4100 - http://www.cmaj.ca/content/193/10/E341.full SO - CMAJ2021 Mar 08; 193