Ca2+/calmodulin-dependent kinase IIδC-induced chronic heart failure does not depend on sarcoplasmic reticulum Ca2+ leak. Dewenter M, Seitz T, Steinbrecher JH, Westenbrink BD, Ling H, Lehnart SE, Wehrens XHT, Backs J, Brown JH, Maier LS, Neef S ESC heart failure, 2024 doi:10.1002/ehf2.14772.