RT Journal Article SR Electronic T1 Loch Eport JF British Journal of General Practice JO Br J Gen Pract FD British Journal of General Practice SP 547 OP 547 DO 10.3399/bjgp10X514990a VO 60 IS 576 A1 Alec Logan YR 2010 UL http://bjgp.org/content/60/576/547.2.abstract AB