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

File: <base>/training/ptb-xl/g21/HR20648.hea (744 bytes) 
HR20648 12 500 5000
HR20648.mat 16x1+24 1000.0(0)/mv 16 0 25 26975 0 I
HR20648.mat 16x1+24 1000.0(0)/mv 16 0 60 -26125 0 II
HR20648.mat 16x1+24 1000.0(0)/mv 16 0 35 12386 0 III
HR20648.mat 16x1+24 1000.0(0)/mv 16 0 -43 31504 0 aVR
HR20648.mat 16x1+24 1000.0(0)/mv 16 0 -5 -25034 0 aVL
HR20648.mat 16x1+24 1000.0(0)/mv 16 0 47 -7035 0 aVF
HR20648.mat 16x1+24 1000.0(0)/mv 16 0 45 -6968 0 V1
HR20648.mat 16x1+24 1000.0(0)/mv 16 0 130 20504 0 V2
HR20648.mat 16x1+24 1000.0(0)/mv 16 0 180 19450 0 V3
HR20648.mat 16x1+24 1000.0(0)/mv 16 0 125 25671 0 V4
HR20648.mat 16x1+24 1000.0(0)/mv 16 0 90 -29107 0 V5
HR20648.mat 16x1+24 1000.0(0)/mv 16 0 40 -18889 0 V6
# Age: 74
# Sex: Male
# Dx: 39732003,426783006
# Rx: Unknown
# Hx: Unknown
# Sx: Unknown