1 From Cardiology Department, Hospital de la Santa Creu i Sant Pau, IIB-SantPau, Universidad Autónoma de Barcelona, Spain (J.Á.-G., M.V.-B., A.F.-G., A.S.-P., J.C.); Department ESAII, EUETIB, Universidad Politécnica de Cataluña, Barcelona, Spain (P.G.); and Biochemistry and Molecular Biology Department, Hospital de la Santa Creu i Sant Pau, IIB-SantPau, Universidad Autónoma de Barcelona, Spain (J.O.-L.).