11_18-50-28_ecg 4 1000 29994 11_18-50-28_ecg.dat 32 6990.5(0)/mV 32 0 -9983 15882 0 I 11_18-50-28_ecg.dat 32 6990.5(0)/mV 32 0 -56914 38267 0 II 11_18-50-28_ecg.dat 32 6990.5(0)/mV 32 0 90960 46742 0 V3 11_18-50-28_ecg.dat 32 6990.5(0)/mV 32 0 59637 43220 0 V4