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

File: <base>/training/ptb-xl/g3/HR02741.hea (741 bytes) 
HR02741 12 500 5000
HR02741.mat 16x1+24 1000.0(0)/mv 16 0 -175 -28985 0 I
HR02741.mat 16x1+24 1000.0(0)/mv 16 0 -25 24993 0 II
HR02741.mat 16x1+24 1000.0(0)/mv 16 0 150 -11566 0 III
HR02741.mat 16x1+24 1000.0(0)/mv 16 0 100 -31215 0 aVR
HR02741.mat 16x1+24 1000.0(0)/mv 16 0 -162 24166 0 aVL
HR02741.mat 16x1+24 1000.0(0)/mv 16 0 62 6490 0 aVF
HR02741.mat 16x1+24 1000.0(0)/mv 16 0 65 3290 0 V1
HR02741.mat 16x1+24 1000.0(0)/mv 16 0 -60 -14189 0 V2
HR02741.mat 16x1+24 1000.0(0)/mv 16 0 -15 11383 0 V3
HR02741.mat 16x1+24 1000.0(0)/mv 16 0 50 28720 0 V4
HR02741.mat 16x1+24 1000.0(0)/mv 16 0 55 23698 0 V5
HR02741.mat 16x1+24 1000.0(0)/mv 16 0 60 13614 0 V6
# Age: NaN
# Sex: Female
# Dx: 164909002
# Rx: Unknown
# Hx: Unknown
# Sx: Unknown