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

File: <base>/training/ningbo/g13/JS22900.hea (712 bytes) 
JS22900 12 500 5000
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JS22900.mat 16x1+24 1000.0(0)/mV 16 0 205 21789 0 II
JS22900.mat 16x1+24 1000.0(0)/mV 16 0 63 17950 0 III
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JS22900.mat 16x1+24 1000.0(0)/mV 16 0 39 19477 0 aVL
JS22900.mat 16x1+24 1000.0(0)/mV 16 0 132 -18848 0 aVF
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# Age: 4
# Sex: Female
# Dx: 427084000,39732003
# Rx: Unknown
# Hx: Unknown
# Sx: Unknown