RT Journal Article SR Electronic T1 Testing for B-type natriuretic peptide in the diagnosis and assessment of heart failure: What are the nuances? JF Cleveland Clinic Journal of Medicine JO Cleve Clin J Med FD Cleveland Clinic SP S1 OP S17 VO 71 IS 6 suppl 5 YR 2004 UL http://www.ccjm.org/content/71/6_suppl_5/S1.abstract AB