RT Journal Article SR Electronic T1 December Focus JF British Journal of General Practice JO Br J Gen Pract FD British Journal of General Practice SP 890 OP 890 DO 10.3399/bjgp09X473097 VO 59 IS 569 A1 David Jewell YR 2009 UL http://bjgp.org/content/59/569/890.abstract AB