Will Two Do? Varying Dimensions in Electrocardiography: The PhysioNet/Computing in Cardiology Challenge 2021 1.0.3

File: <base>/training/ptb-xl/g9/HR08774.hea (744 bytes) 
HR08774 12 500 5000
HR08774.mat 16x1+24 1000.0(0)/mv 16 0 35 -27840 0 I
HR08774.mat 16x1+24 1000.0(0)/mv 16 0 40 8288 0 II
HR08774.mat 16x1+24 1000.0(0)/mv 16 0 5 -29373 0 III
HR08774.mat 16x1+24 1000.0(0)/mv 16 0 -38 -22845 0 aVR
HR08774.mat 16x1+24 1000.0(0)/mv 16 0 15 -31993 0 aVL
HR08774.mat 16x1+24 1000.0(0)/mv 16 0 22 -10472 0 aVF
HR08774.mat 16x1+24 1000.0(0)/mv 16 0 30 -5344 0 V1
HR08774.mat 16x1+24 1000.0(0)/mv 16 0 10 -1796 0 V2
HR08774.mat 16x1+24 1000.0(0)/mv 16 0 -25 20683 0 V3
HR08774.mat 16x1+24 1000.0(0)/mv 16 0 5 4260 0 V4
HR08774.mat 16x1+24 1000.0(0)/mv 16 0 -20 8707 0 V5
HR08774.mat 16x1+24 1000.0(0)/mv 16 0 -155 12984 0 V6
# Age: 84
# Sex: Female
# Dx: 251146004,426783006
# Rx: Unknown
# Hx: Unknown
# Sx: Unknown