of America, Heart Rhythm Society, Society for Cardiovascular Angiography and Echocardiography, American Society of Nuclear Cardiology, Heart Failure Society American Association for Thoracic Surgery, American Society of Foundation/American Heart Association Task Force on Practice Guidelines Cardiomyopathy: A Report of the American College of Cardiology 2011 ACCF/AHA Guideline for the Diagnosis and Treatment of Hypertrophic