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

File: <base>/training/ningbo/g2/JS12010.hea (749 bytes) 
JS12010 12 500 5000
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JS12010.mat 16x1+24 1000.0(0)/mV 16 0 -10 2547 0 III
JS12010.mat 16x1+24 1000.0(0)/mV 16 0 39 848 0 aVR
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JS12010.mat 16x1+24 1000.0(0)/mV 16 0 -5 2087 0 V2
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# Age: 54
# Sex: Female
# Dx: 426177001,270492004,164934002
# Rx: Unknown
# Hx: Unknown
# Sx: Unknown