13_20-09-20_ecg 4 1000 29993 13_20-09-20_ecg.dat 32 6990.5(0)/mV 32 0 94200 21948 0 I 13_20-09-20_ecg.dat 32 6990.5(0)/mV 32 0 -1020 46920 0 II 13_20-09-20_ecg.dat 32 6990.5(0)/mV 32 0 -40799 18718 0 V3 13_20-09-20_ecg.dat 32 6990.5(0)/mV 32 0 -34613 1979 0 V4