RT Journal Article SR Electronic T1 Author's response JF British Journal of General Practice JO Br J Gen Pract FD British Journal of General Practice SP 363 OP 364 DO 10.3399/bjgp08X280263 VO 58 IS 550 A1 Gordon Baird YR 2008 UL http://bjgp.org/content/58/550/363.2.abstract AB