20 lines (19 with data), 705 Bytes

HR12286 12 500 5000 04-Jun-2020 21:57:08
HR12286.mat 16+24 200/mV 16 0 40 1742 0 I
HR12286.mat 16+24 200/mV 16 0 -285 -11486 0 II
HR12286.mat 16+24 200/mV 16 0 -325 -13205 0 III
HR12286.mat 16+24 200/mV 16 0 123 4761 0 aVR
HR12286.mat 16+24 200/mV 16 0 183 7412 0 aVL
HR12286.mat 16+24 200/mV 16 0 -305 -12403 0 aVF
HR12286.mat 16+24 200/mV 16 0 55 1807 0 V1
HR12286.mat 16+24 200/mV 16 0 715 25889 0 V2
HR12286.mat 16+24 200/mV 16 0 630 8992 0 V3
HR12286.mat 16+24 200/mV 16 0 310 -5746 0 V4
HR12286.mat 16+24 200/mV 16 0 70 -15889 0 V5
HR12286.mat 16+24 200/mV 16 0 -195 989 0 V6
#Age: 79
#Sex: Male
#Dx: 164861001,164884008,164889003,39732003,445118002,698252002
#Rx: Unknown
#Hx: Unknown
#Sx: Unknown