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Massachusetts General Physicians Organization
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Brigham and Women's Hospital
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Alliance for Academic Internal Medicine
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Association of Professors of Medicine
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Tufts Managed Care Institute
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Penn State Geisinger Health System
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The Detroit Medical Center
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The Vermont Health Plan
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Oxford Health Plan
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Henry Ford Health System
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Hoechst Marion Roussel, Inc.
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Schering-Plough Pharmaceuticals
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