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

File: <base>/training/ptb-xl/g1/HR00657.hea (746 bytes) 
HR00657 12 500 5000
HR00657.mat 16x1+24 1000.0(0)/mv 16 0 -140 21929 0 I
HR00657.mat 16x1+24 1000.0(0)/mv 16 0 -125 -26556 0 II
HR00657.mat 16x1+24 1000.0(0)/mv 16 0 15 17011 0 III
HR00657.mat 16x1+24 1000.0(0)/mv 16 0 132 -30539 0 aVR
HR00657.mat 16x1+24 1000.0(0)/mv 16 0 -77 -29889 0 aVL
HR00657.mat 16x1+24 1000.0(0)/mv 16 0 -55 -4468 0 aVF
HR00657.mat 16x1+24 1000.0(0)/mv 16 0 3075 -6824 0 V1
HR00657.mat 16x1+24 1000.0(0)/mv 16 0 -135 32146 0 V2
HR00657.mat 16x1+24 1000.0(0)/mv 16 0 500 9695 0 V3
HR00657.mat 16x1+24 1000.0(0)/mv 16 0 35 22517 0 V4
HR00657.mat 16x1+24 1000.0(0)/mv 16 0 310 17062 0 V5
HR00657.mat 16x1+24 1000.0(0)/mv 16 0 -120 -4456 0 V6
# Age: 71
# Sex: Female
# Dx: 426783006
# Rx: Unknown
# Hx: Unknown
# Sx: Unknown