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

File: <base>/training/ningbo/g3/JS12840.hea (759 bytes) 
JS12840 12 500 5000
JS12840.mat 16x1+24 1000.0(0)/mV 16 0 5 -1280 0 I
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JS12840.mat 16x1+24 1000.0(0)/mV 16 0 29 -17340 0 aVF
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JS12840.mat 16x1+24 1000.0(0)/mV 16 0 -215 -16471 0 V2
JS12840.mat 16x1+24 1000.0(0)/mV 16 0 -34 19933 0 V3
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JS12840.mat 16x1+24 1000.0(0)/mV 16 0 -791 -20868 0 V6
# Age: 65
# Sex: Female
# Dx: 698252002,55930002,164890007
# Rx: Unknown
# Hx: Unknown
# Sx: Unknown