20 lines (19 with data), 694 Bytes

HR00423 12 500 5000 04-Jun-2020 15:11:55
HR00423.mat 16+24 200/mV 16 0 0 -17733 0 I
HR00423.mat 16+24 200/mV 16 0 300 5732 0 II
HR00423.mat 16+24 200/mV 16 0 300 23516 0 III
HR00423.mat 16+24 200/mV 16 0 -150 5718 0 aVR
HR00423.mat 16+24 200/mV 16 0 -150 -20556 0 aVL
HR00423.mat 16+24 200/mV 16 0 300 14510 0 aVF
HR00423.mat 16+24 200/mV 16 0 -880 29296 0 V1
HR00423.mat 16+24 200/mV 16 0 -2165 -12837 0 V2
HR00423.mat 16+24 200/mV 16 0 -1025 25364 0 V3
HR00423.mat 16+24 200/mV 16 0 -875 -24087 0 V4
HR00423.mat 16+24 200/mV 16 0 -25 4508 0 V5
HR00423.mat 16+24 200/mV 16 0 80 32739 0 V6
#Age: 87
#Sex: Male
#Dx: 164861001,164865005,164873001,251120003
#Rx: Unknown
#Hx: Unknown
#Sx: Unknown