RT Journal Article SR Electronic T1 Cannabis in primary care JF British Journal of General Practice JO Br J Gen Pract FD British Journal of General Practice SP 594 OP 595 DO 10.3399/bjgp19X706673 VO 69 IS 689 A1 Leon Barron A1 Dani Gordon YR 2019 UL http://bjgp.org/content/69/689/594.abstract AB