1. Department of Cardiology, Hospital General Universitario Gregorio Marañón, Facultad de Medicina, Universidad Complutense de Madrid, Instituto de Investigación Sanitaria Gregorio Marañón, and CIBERCV, Dr. Esquerdo 46, 28007 Madrid, Spain
2. Department of Mathematical Physics and Fluids, Facultad de Ciencias, Universidad Nacional de Educación a Distancia, UNED, and CIBERCV, Madrid, Spain
3. Torrens University Australia, Adelaide, South Australia, Australia
4. Department of Information and Communications, Hospital General Universitario Gregorio Marañón, Madrid, Spain
5. School of Medicine, University of Notre Dame, Fremantle, Australia