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

File: <base>/training/ningbo/g13/JS22920.hea (761 bytes) 
JS22920 12 500 5000
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JS22920.mat 16x1+24 1000.0(0)/mV 16 0 5 28881 0 II
JS22920.mat 16x1+24 1000.0(0)/mV 16 0 5 19392 0 III
JS22920.mat 16x1+24 1000.0(0)/mV 16 0 0 -13107 0 aVR
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JS22920.mat 16x1+24 1000.0(0)/mV 16 0 5 18153 0 aVF
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JS22920.mat 16x1+24 1000.0(0)/mV 16 0 39 14272 0 V2
JS22920.mat 16x1+24 1000.0(0)/mV 16 0 15 14082 0 V3
JS22920.mat 16x1+24 1000.0(0)/mV 16 0 5 3905 0 V4
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# Age: 86
# Sex: Female
# Dx: 429622005,59931005,426177001,164873001,55930002
# Rx: Unknown
# Hx: Unknown
# Sx: Unknown