RT Journal Article SR Electronic T1 Failure of plasma brain natriuretic peptide to identify left ventricular systolic dysfunction in the community JF Heart JO Heart FD BMJ Publishing Group Ltd and British Cardiovascular Society SP 440 OP 441 DO 10.1136/heart.84.4.440 VO 84 IS 4 A1 HETMANSKI, D J A1 SPARROW, N J A1 CURTIS, S A1 COWLEY, A J YR 2000 UL http://heart.bmj.com/content/84/4/440.abstract AB