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

File: <base>/training/ningbo/g31/JS40676.hea (730 bytes) 
JS40676 12 500 5000
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JS40676.mat 16x1+24 1000.0(0)/mV 16 0 -20 4209 0 III
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JS40676.mat 16x1+24 1000.0(0)/mV 16 0 -24 392 0 aVF
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JS40676.mat 16x1+24 1000.0(0)/mV 16 0 -44 11801 0 V2
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JS40676.mat 16x1+24 1000.0(0)/mV 16 0 -68 15643 0 V6
# Age: 44
# Sex: Male
# Dx: 426783006
# Rx: Unknown
# Hx: Unknown
# Sx: Unknown