Fibrillation Number Based on Wavelength and Critical Mass in Patients Who Underwent Radiofrequency Catheter Ablation for Atrial Fibrillation. - Minki Hwang; Junbeum Park; Young-Seon Lee; Jae Hyung Park; Sung Hwan Choi; Eun Bo Shim; Hui-Nam Pak (IEEE Trans. Biomed. Eng., 2015)