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

File: <base>/training/ningbo/g4/JS14507.hea (765 bytes) 
JS14507 12 500 5000
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JS14507.mat 16x1+24 1000.0(0)/mV 16 0 -337 27119 0 II
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JS14507.mat 16x1+24 1000.0(0)/mV 16 0 -527 26031 0 aVF
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JS14507.mat 16x1+24 1000.0(0)/mV 16 0 -356 32088 0 V2
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JS14507.mat 16x1+24 1000.0(0)/mV 16 0 15 27136 0 V4
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JS14507.mat 16x1+24 1000.0(0)/mV 16 0 508 22441 0 V6
# Age: 82
# Sex: Male
# Dx: 164890007,427172004,10370003
# Rx: Unknown
# Hx: Unknown
# Sx: Unknown