0550_001_015_ECG 2 256 690944 0550_001_015_ECG.mat 16+24 6553.4 16 0 -7628 2128073556 0 ECG1 0550_001_015_ECG.mat 16+24 6553.4 16 0 -12928 -2226203778 0 ECG2 #Utility frequency: 60 #Start time: 15:15:01 #End time: 15:59:59