Ansingkar K, Nanda N C, Aaluri S R, Mukhtar O, Puri V K, Kirklin J T, Pacifico A
Division of Cardiovascular Disease, University of Alabama at Birmingham, 35249, USA.
Echocardiography. 2000 Aug;17(6 Pt 1):579-83. doi: 10.1046/j.1540-8175.2000.00579.x.