data_68_6 2 200 18373 data_68_6.dat 16 23873.66375121477(-106465)/mV 16 0 8892 37774 0 I data_68_6.dat 16 20071.495327102803(-118673)/mV 16 0 -16167 46807 0 II # paroxysmal atrial fibrillation