Scheinman Melvin, Calkins Hugh, Gillette Paul, Klein Richard, Lerman Bruce B, Morady Fred, Saksena Sanjeev, Waldo Albert
University of California-San Francisco, San Francisco, California, USA.
Pacing Clin Electrophysiol. 2003 Mar;26(3):789-99. doi: 10.1046/j.1460-9592.2003.00139.x.