RT Journal Article SR Electronic T1 Diagnostic safety-netting JF British Journal of General Practice JO Br J Gen Pract FD British Journal of General Practice SP 872 OP 874 DO 10.3399/bjgp09X472971 VO 59 IS 568 A1 Susanna Almond A1 David Mant A1 Matthew Thompson YR 2009 UL http://bjgp.org/content/59/568/872.abstract AB