Williams R V, Ritter S, Minich L L, Pagotto L T, Tani L Y
Division of Cardiology, Department of Pediatrics, Primary Children's Medical Center and the University of Utah, Salt Lake City 84113, USA.
Am J Cardiol. 2000 Jun 15;85(12):1501-3; A8. doi: 10.1016/s0002-9149(00)00805-5.