RT Journal Article SR Electronic T1 William Pickles Lecture 1993. When something is good, more of the same is not always better. JF British Journal of General Practice JO Br J Gen Pract FD British Journal of General Practice SP 254 OP 258 VO 43 IS 371 A1 N C Stott YR 1993 UL http://bjgp.org/content/43/371/254.abstract AB