20_15-39-25_ecg 4 1000 29994 20_15-39-25_ecg.dat 32 6990.5(0)/mV 32 0 -1654 56145 0 I 20_15-39-25_ecg.dat 32 6990.5(0)/mV 32 0 34714 36072 0 II 20_15-39-25_ecg.dat 32 6990.5(0)/mV 32 0 -37439 40115 0 V3 20_15-39-25_ecg.dat 32 6990.5(0)/mV 32 0 -23232 6742 0 V4