20 lines (19 with data), 737 Bytes

HR10365 12 500 5000 04-Jun-2020 15:11:55
HR10365.mat 16+24 200/mV 16 0 20 515 0 I
HR10365.mat 16+24 200/mV 16 0 -215 11067 0 II
HR10365.mat 16+24 200/mV 16 0 -235 10531 0 III
HR10365.mat 16+24 200/mV 16 0 98 -5599 0 aVR
HR10365.mat 16+24 200/mV 16 0 128 -4822 0 aVL
HR10365.mat 16+24 200/mV 16 0 -225 10959 0 aVF
HR10365.mat 16+24 200/mV 16 0 -75 -1893 0 V1
HR10365.mat 16+24 200/mV 16 0 -370 -19618 0 V2
HR10365.mat 16+24 200/mV 16 0 -215 -13868 0 V3
HR10365.mat 16+24 200/mV 16 0 -340 -12182 0 V4
HR10365.mat 16+24 200/mV 16 0 -15 -13376 0 V5
HR10365.mat 16+24 200/mV 16 0 -15 6026 0 V6
#Age: 78
#Sex: Male
#Dx: 164861001,164865005,164873001,164947007,426783006,429622005,59931005,67741000119109
#Rx: Unknown
#Hx: Unknown
#Sx: Unknown