7_14-23-50_ecg 4 1000 29994 7_14-23-50_ecg.dat 32 6990.5(0)/mV 32 0 -35939 51047 0 I 7_14-23-50_ecg.dat 32 6990.5(0)/mV 32 0 -69352 3163 0 II 7_14-23-50_ecg.dat 32 6990.5(0)/mV 32 0 2957 33261 0 V3 7_14-23-50_ecg.dat 32 6990.5(0)/mV 32 0 33618 22119 0 V4