RT Journal Article SR Electronic T1 Authors' response JF British Journal of General Practice JO Br J Gen Pract FD British Journal of General Practice SP 437 OP 437 DO 10.3399/bjgp11X583047 VO 61 IS 588 A1 Ewan Stewart A1 Paul Arkell A1 Ian Williams YR 2011 UL http://bjgp.org/content/61/588/437.1.abstract AB