Table 1.

Contributing Centers

Stanford Medical Center, Palo Alto, CA

Arizona Heart Rhythm Center, Phoenix, AZ

Baylor University Medical Center, Dallas, TX

Duke University Medical Center, Durham, NC

Intermountain Medical Center, Salt Lake City, UT

Ohio State University Wexner Medical Center, Columbus, OH

University of California San Diego Medical Center, San Diego, CA

San Diego Veterans Affairs Medical Center, CA

Massachusetts General Hospital, Boston, MA

Central Baptist Hospital, Lexington, KY

Indiana University Health University Hospital, Indianapolis, IN