23_13-42-13_ecg 4 1000 29993 23_13-42-13_ecg.dat 32 6990.5(0)/mV 32 0 -1144 40527 0 I 23_13-42-13_ecg.dat 32 6990.5(0)/mV 32 0 -19924 48123 0 II 23_13-42-13_ecg.dat 32 6990.5(0)/mV 32 0 -17938 52275 0 V3 23_13-42-13_ecg.dat 32 6990.5(0)/mV 32 0 -1240 25967 0 V4