83.    Igarashi, M.; Nogami, A.; Fukamizu, S.; Sekiguchi, Y.; Nitta, J.; Sakamoto, N.; Sakamoto, Y.; Kurosaki, K.; Takahashi, Y.; Kimata, A.; et al. Acute and long-term results of bipolar radiofrequency catheter ablation of refractory ventricular arrhythmias of deep intramural origin. Heart Rhythm202017, 1500–1507, doi:10.1016/j.hrthm.2020.04.028.