Canadian multicentre study examines safety of medical cannabis in the treatment of chronic pain | UdeMNouvelles 2017-01-28 Leave a Comment on Canadian multicentre study examines safety of medical cannabis in the treatment of chronic pain | UdeMNouvelles McGill’s Dr. Mark Ware and Université de Montréal’s Dr. Aline Boulanger demonstrate the long term safety of medical cannabis use by patients suffering from chronic pain. Source: Canadian multicentre study examines safety of medical cannabis in the treatment of chronic pain | UdeMNouvelles