RT Journal Article SR Electronic T1 MATHEMATICAL MODELS OF GENERAL PRACTICE JF The Journal of the Royal College of General Practitioners JO J R Coll Gen Pract FD British Journal of General Practice SP 454 OP 454 VO 26 IS 167 A1 S. James Kilpatrick YR 1976 UL http://bjgp.org/content/26/167/454.2.abstract AB