RT Journal Article SR Electronic T1 BJGP Library: The Citadel JF British Journal of General Practice JO Br J Gen Pract FD British Journal of General Practice SP 480 OP 480 DO 10.3399/bjgp15X686641 VO 65 IS 638 A1 Graham Watt YR 2015 UL http://bjgp.org/content/65/638/480.abstract AB