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

File: <base>/training/chapman_shaoxing/g1/JS00227.hea (737 bytes) 
JS00227 12 500 5000
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JS00227.mat 16x1+24 1000.0(0)/mV 16 0 -20 25996 0 V2
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JS00227.mat 16x1+24 1000.0(0)/mV 16 0 5 4710 0 V6
# Age: 59
# Sex: Female
# Dx: 426177001
# Rx: Unknown
# Hx: Unknown
# Sx: Unknown