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

File: <base>/training/ningbo/g1/JS11520.hea (700 bytes) 
JS11520 12 500 5000
JS11520.mat 16x1+24 1000.0(0)/mV 16 0 -24 13601 0 I
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JS11520.mat 16x1+24 1000.0(0)/mV 16 0 49 -16536 0 III
JS11520.mat 16x1+24 1000.0(0)/mV 16 0 0 754 0 aVR
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JS11520.mat 16x1+24 1000.0(0)/mV 16 0 34 16940 0 aVF
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JS11520.mat 16x1+24 1000.0(0)/mV 16 0 0 0 0 V2
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JS11520.mat 16x1+24 1000.0(0)/mV 16 0 0 0 0 V6
# Age: 89
# Sex: Female
# Dx: 425856008
# Rx: Unknown
# Hx: Unknown
# Sx: Unknown