1 Congenital Heart Center Nevada, 3131 La Canada St. Ste 230, Las Vegas, NV, 89169, USA. wnevans50@aol.com.
2 Department of Pediatrics, Division of Pediatric Cardiology, Kirk Kerkorian School of Medicine at University of Nevada Las Vegas, 2040 W Charleston Blvd 3rd Floor, Las Vegas, NV, 89102, USA. wnevans50@aol.com.