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

File: <base>/training/ningbo/g7/JS16754.hea (766 bytes) 
JS16754 12 500 5000
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JS16754.mat 16x1+24 1000.0(0)/mV 16 0 88 9959 0 V2
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# Age: 53
# Sex: Male
# Dx: 164890007,164934002,55827005,59931005
# Rx: Unknown
# Hx: Unknown
# Sx: Unknown