[1] Med Univ Graz, Dept Cardiol, Graz, Austria
[2] BioTechMed Graz, Graz, Austria
[3] Med Univ Graz, Div Pharmacol, Otto Loewi Res Ctr, Graz, Austria
[4] Med Univ Graz, Div Cell Biol Histol & Embryol, Res Unit Elect Microscop Techn, Gottfried Schatz Res Ctr, Graz, Austria
[5] Univ Calif Davis, Dept Internal Med, Cardiovasc Med, Davis, CA 95616 USA
[6] Temple Univ, Cardiovasc Res Ctr, Lewis Katz Sch Med, Philadelphia, PA 19122 USA
[7] Univ Calif Davis, Dept Pharmacol, Davis, CA 95616 USA
[8] Univ Calif Davis, Dept Mol Biosci, Davis, CA 95616 USA