From the Hypertrophic Cardiomyopathy Center Minneapolis Heart Institute Foundation, Minneapolis (B.J.M.); and the New England Cardiac Arrhythmia Center, Cardiology Division, Tufts University School of Medicine, Boston (N.A.M.E.). Address reprint requests to Dr. Maron at Minneapolis Heart Institute Foundation, 920 E. 28th St., Suite 620, Minneapolis, MN 55407, or at [email protected].
Supported in part by grants from the Hearst Foundations, the Louis J. Acompora Memorial Foundation, and the National Operating Committee on Standards for Athletic Equipment.
Dr. Maron reports receiving consulting fees from GeneDx (a subsidiary of Bio-Reference Laboratories) and lecture fees and grant support from Medtronic. Dr. Estes reports that his institution has received fellowship funding from St. Jude Medical, Boston Scientific, and Medtronic and that he has received lecture fees and travel support from Boston Scientific.
We thank David Mottet for his assistance with an earlier version of Figure 2.
