RT Journal Article SR Electronic T1 Tax relief on subscriptions JF The Journal of the Royal College of General Practitioners JO J R Coll Gen Pract FD British Journal of General Practice SP 419 OP 419 VO 37 IS 302 A1 D.G. Garvie YR 1987 UL http://bjgp.org/content/37/302/419.4.abstract AB