Patterns and Implications of B-Type Natriuretic Peptide Measurement in Patients With Non–ST-Segment Elevation Acute Coronary Syndromes††Conflicts of interest: L. Kristin Newby receives research grants from Millennium Pharmaceuticals, Inc., Cambridge, Massachusetts, the Schering Plough Research Institute, and BMS/Sanofi and is a member of the speakers bureau and receives honoraria from BMS/Sanofi/Aventis. W. Frank Peacock receives research grants from and is a member of the speakers bureau and the consultant/advisory board for Millennium Pharmaceuticals, Inc. W. Brian Gibler receives research grants from Millennium Pharmaceuticals, Inc., the Schering Corporation, and the Bristol-Myers Squibb/Sanofi Pharmaceuticals Partnership. E. Magnus Ohman receives research grants from Millennium Pharmaceuticals, Inc., the Bristol-Myers Squibb/Sanofi Pharmaceuticals Partnership, the Schering Corporation, and Berlex. Eric D. Peterson receives research grants from Bristol-Myers Squibb, the Bristol-Myers Squibb/Sanofi-Aventis Pharmaceuticals Partnership, Bristol-Myers Squibb/Merck, and the Schering-Plough Corporation. Matthew T. Roe is a member of the speakers bureaus for Millennium Pharmaceuticals, Inc., the Bristol-Myers Squibb/Sanofi-Aventis Pharmaceuticals Partnership, and the Schering Corporation and receives research grants from Millennium Pharmaceuticals, Inc., the Bristol-Myers Squibb/Sanofi-Aventis Pharmaceuticals Partnership, and Schering Corporation.