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

File: <base>/training/ningbo/g5/JS14704.hea (709 bytes) 
JS14704 12 500 5000
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JS14704.mat 16x1+24 1000.0(0)/mV 16 0 181 10092 0 III
JS14704.mat 16x1+24 1000.0(0)/mV 16 0 5 -2112 0 aVR
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JS14704.mat 16x1+24 1000.0(0)/mV 16 0 132 5706 0 aVF
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JS14704.mat 16x1+24 1000.0(0)/mV 16 0 0 0 0 V2
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# Age: 81
# Sex: Male
# Dx: 164890007,427172004
# Rx: Unknown
# Hx: Unknown
# Sx: Unknown