Chief
Division of Cardiology
Bronx-Lebanon Hospital Center
Bronx
NY
Dr Jonathan Bella would like to gratefully acknowledge Dr Liran Blum and Dr Michael Spinelli, previous contributors to this monograph. LB and MS declare that they have no competing interests.
Professor of Medicine
Division of Cardiology
University of California
San Francisco
CA
Professor of Medicine
Director of Echocardiography
Mayo Clinic
Jacksonville
FL
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