Balloon Dilatation of Expandable Sheath to Facilitate Transfemoral SAPIEN 3 Transcatheter Aortic Valve Replacement in Severely Calcified Vasculature oleh Maheedhar Gedela, MD, Sahil Khera, MD, MPH, Rami O. Tadros, MD, Parasuram Krishnamoorthy, MD, Amit Hooda, MD, Pedro Moreno, MD, PhD, George D. Dangas, MD, PhD, Samin K. Sharma, MD, Annapoorna S. Kini, MD, Gilbert H.L. Tang, MD, MSc, MBA