RT Journal Article SR Electronic T1 James Mackenzie Lecture. The origin of the general practitioner. JF The Journal of the Royal College of General Practitioners JO J R Coll Gen Pract FD British Journal of General Practice SP 13 OP 23 VO 33 IS 246 A1 I. S. Loudon YR 1983 UL http://bjgp.org/content/33/246/13.abstract AB