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

File: <base>/training/ningbo/g4/JS14001.hea (751 bytes) 
JS14001 12 500 5000
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JS14001.mat 16x1+24 1000.0(0)/mV 16 0 59 -6738 0 aVF
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JS14001.mat 16x1+24 1000.0(0)/mV 16 0 15 15081 0 V2
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JS14001.mat 16x1+24 1000.0(0)/mV 16 0 -24 31874 0 V4
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JS14001.mat 16x1+24 1000.0(0)/mV 16 0 -73 -18841 0 V6
# Age: 69
# Sex: Male
# Dx: 164890007,55827005,39732003
# Rx: Unknown
# Hx: Unknown
# Sx: Unknown