1. Department of Cardiothoracic Surgery (J.A.A., I.P.-G., V.T., N.V., R.R., A.A.G., I.K.), Stanford University School of Medicine, CA.
2. Stanford Cardiovascular Institute (J.A.A., N.B., I.P.-G., V.T., N.V., P.G., R.R., A.A.G., J.C.W., I.K.), Stanford University School of Medicine, CA.
3. Department of Medicine (N.B., P.G., J.C.W.), Stanford University School of Medicine, CA.
4. Insuficiencia Cardiaca i Regeneració Cardiaca, Research Program, Germans Trias i Pujol Health Science Research Institute, Badalona, Spain (S.R., C.G.-M., A.B.-G.).
5. Centro de Investiogación en Red Cardiovascular, Cardiovascular, Instituto de Salud Carlos III, Madrid, Spain (S.R., C.G.-M., A.B.-G.).
6. Faculty of Medicine, University of Vic-Central University of Catalonia, Spain (S.R.).
7. Cardiology Service, Germans Trias i Pujol University Hospital, Badalona, Spain (A.B.-G.).
8. Department of Medicine, Universitat Autònoma de Barcelona, Spain (A.B.-G.).