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

File: <base>/training/ningbo/g23/JS33407.hea (763 bytes) 
JS33407 12 500 5000
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JS33407.mat 16x1+24 1000.0(0)/mV 16 0 -15 6830 0 aVF
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JS33407.mat 16x1+24 1000.0(0)/mV 16 0 -34 20928 0 V2
JS33407.mat 16x1+24 1000.0(0)/mV 16 0 -34 20417 0 V3
JS33407.mat 16x1+24 1000.0(0)/mV 16 0 -15 17431 0 V4
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JS33407.mat 16x1+24 1000.0(0)/mV 16 0 -34 19179 0 V6
# Age: 58
# Sex: Female
# Dx: 426177001,429622005,55930002,59931005
# Rx: Unknown
# Hx: Unknown
# Sx: Unknown