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

File: <base>/training/ningbo/g10/JS20311.hea (763 bytes) 
JS20311 12 500 5000
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JS20311.mat 16x1+24 1000.0(0)/mV 16 0 166 25836 0 aVF
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JS20311.mat 16x1+24 1000.0(0)/mV 16 0 181 -13751 0 V2
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JS20311.mat 16x1+24 1000.0(0)/mV 16 0 122 -30764 0 V6
# Age: 77
# Sex: Female
# Dx: 284470004,713422000,10370003
# Rx: Unknown
# Hx: Unknown
# Sx: Unknown