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

File: <base>/training/ningbo/g27/JS37638.hea (759 bytes) 
JS37638 12 500 5000
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JS37638.mat 16x1+24 1000.0(0)/mV 16 0 -34 94 0 V4
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# Age: 0
# Sex: Female
# Dx: 426783006,429622005,55930002,59931005
# Rx: Unknown
# Hx: Unknown
# Sx: Unknown