RT Journal Article SR Electronic T1 Lydia Delectorskaya JF British Journal of General Practice JO Br J Gen Pract FD British Journal of General Practice SP 626 OP 627 DO 10.3399/bjgp10X515250 VO 60 IS 577 A1 Graham Watt YR 2010 UL http://bjgp.org/content/60/577/626.abstract AB