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

File: <base>/training/ningbo/g3/JS12868.hea (778 bytes) 
JS12868 12 500 5000
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JS12868.mat 16x1+24 1000.0(0)/mV 16 0 -683 -13379 0 aVR
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JS12868.mat 16x1+24 1000.0(0)/mV 16 0 298 29281 0 aVF
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JS12868.mat 16x1+24 1000.0(0)/mV 16 0 224 -30588 0 V2
JS12868.mat 16x1+24 1000.0(0)/mV 16 0 156 -32296 0 V3
JS12868.mat 16x1+24 1000.0(0)/mV 16 0 239 -15457 0 V4
JS12868.mat 16x1+24 1000.0(0)/mV 16 0 259 -13741 0 V5
JS12868.mat 16x1+24 1000.0(0)/mV 16 0 234 -9614 0 V6
# Age: 62
# Sex: Female
# Dx: 284470004,698252002,427084000,251146004
# Rx: Unknown
# Hx: Unknown
# Sx: Unknown