From the Department of Cardiovascular Medicine, Kyoto University Graduate School of Medicine, Kyoto, Japan (S.O., T.M., T.D., S.S., T.H.); Department of Physiology (D.P.Z., W.-G.D., H.M.) and Department of Cardiovascular and Respiratory Medicine (D.P.Z., H.I., A.M., N.N., M.H.), Shiga University of Medical Science, Otsu, Japan; and Department of Physiology, School of Medical Sciences, University of Bristol, Bristol, UK (J.C.H.).(2011-06時点)