RT Journal Article SR Electronic T1 Defining diagnosis: screening and decision making in primary care. JF British Journal of General Practice JO Br J Gen Pract FD British Journal of General Practice SP 914 OP 915 VO 53 IS 497 A1 Tom Love A1 Tom Fahey YR 2003 UL http://bjgp.org/content/53/497/914.abstract AB