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 441 OP 441 DO 10.3399/bjgp11X583137 VO 61 IS 588 A1 Astin, Margaret P A1 Neal, Richard D A1 Rose, Peter W A1 Hamilton, William YR 2011 UL http://bjgp.org/content/61/588/441.abstract AB