RT Journal Article SR Electronic T1 July Focus JF British Journal of General Practice JO Br J Gen Pract FD British Journal of General Practice SP 474 OP 474 DO 10.3399/bjgp09X453477 VO 59 IS 564 A1 David Jewell YR 2009 UL http://bjgp.org/content/59/564/474.abstract AB