RT Journal Article SR Electronic T1 College of General Practitioners—1845 JF The Journal of the Royal College of General Practitioners JO J R Coll Gen Pract FD British Journal of General Practice SP 268 OP 269 VO 22 IS 117 A1 J. Gwyn Thomas YR 1972 UL http://bjgp.org/content/22/117/268.2.abstract AB