ob1db/p10143 ECG1 FECG 500 200 adu/mV 20520 ob1db/p10143 ECG2 UC 500 200 adu/mV 20520 ob1db/p10143 AnnM1 qrs 500 48854 19681 840-20521 ob1db/p10143 AnnM1 qrs/N 500 48854 19681 840-20521 ob1db/p10143 AnnR2 qrsc 500 48854 19681 840-20521 ob1db/p10143 AnnR2 qrsc/N 500 48854 19681 840-20521