RT Journal Article SR Electronic T1 Infectious diseases update JF The Journal of the Royal College of General Practitioners JO J R Coll Gen Pract FD British Journal of General Practice SP 523 OP 523 VO 39 IS 329 A1 D. Compbell A1 E. Walker YR 1989 UL http://bjgp.org/content/39/329/523.abstract AB