8_13-21-39_ecg 4 1000 29994 8_13-21-39_ecg.dat 32 6990.5(0)/mV 32 0 -14192 45446 0 I 8_13-21-39_ecg.dat 32 6990.5(0)/mV 32 0 26467 6071 0 II 8_13-21-39_ecg.dat 32 6990.5(0)/mV 32 0 -52495 43069 0 V3 8_13-21-39_ecg.dat 32 6990.5(0)/mV 32 0 -47138 45094 0 V4