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

File: <base>/training/ningbo/g22/JS32603.hea (744 bytes) 
JS32603 12 500 5000
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JS32603.mat 16x1+24 1000.0(0)/mV 16 0 -29 8782 0 aVF
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JS32603.mat 16x1+24 1000.0(0)/mV 16 0 -49 22604 0 V2
JS32603.mat 16x1+24 1000.0(0)/mV 16 0 -49 22607 0 V3
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JS32603.mat 16x1+24 1000.0(0)/mV 16 0 -88 19017 0 V6
# Age: 60
# Sex: Female
# Dx: 426177001,55827005
# Rx: Unknown
# Hx: Unknown
# Sx: Unknown