75. Yamada, T.; McElderry, H.T.; Doppalapudi, H.; Murakami, Y.; Yoshida, Y.; Yoshida, N.; Okada, T.; Tsuboi, N.; Inden, Y.; Murohara, T.; et al. Idiopathic ventricular arrhythmias originating from the aortic root prevalence, electrocardiographic and electrophysiologic characteristics, and results of radiofrequency catheter ablation. J. Am. Coll. Cardiol. 2008, 52, 139–147, doi:10.1016/j.jacc.2008.03.040.