SERCA2 C674S heterozygote knock-in mice with angiotensin II infusion leads to QT prolongation and lethal ventricular arrhythmia due to impaired sarcoplasmic reticulum Ca2+ handling.
Relationship between relative activity of beta1-adrenoreceptors, autoantibodies against beta1-adrenoreceptors and ventricular arrhythmia in patients without structural heart disease.