Canna~Fangled Abstracts Efficacy and safety of cannabidiol followed by an open label add-on of tetrahydrocannabinol for the treatment of chronic pain in patients with rheumatoid arthritis or ankylosing spondylitis: protocol for a multicentre, randomised, placebo-controlled study. BMJ Open. 2019 Jun 4;9(6):e028197. doi: 10.1136/bmjopen-2018-028197. Hendricks O1,2, Andersen TE3, Christiansen AA1,2, Primdahl J1,4,…Freedom WaresJune 4, 2019
