Barker Colin M, Johnson Nils P, Sdringola Stefano, Gould K Lance
Division of Cardiology, University of Texas Medical School at Houston, Memorial Hermann Heart and Vascular Institute, Texas Medical Center, Houston, Texas 77030, USA.
JACC Cardiovasc Interv. 2011 Aug;4(8):932-3. doi: 10.1016/j.jcin.2011.02.021.