RT Journal Article SR Electronic T1 Information gathering JF British Journal of General Practice JO Br J Gen Pract FD British Journal of General Practice SP 637 OP 637 DO 10.3399/bjgp11X601460 VO 61 IS 591 A1 Emyr Gravell YR 2011 UL http://bjgp.org/content/61/591/637.abstract AB