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

File: <base>/training/ningbo/g5/JS15220.hea (776 bytes) 
JS15220 12 500 5000
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JS15220.mat 16x1+24 1000.0(0)/mV 16 0 -78 11309 0 II
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# Age: 77
# Sex: Female
# Dx: 55827005,429622005,59931005,164890007,55930002
# Rx: Unknown
# Hx: Unknown
# Sx: Unknown