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

File: <base>/training/chapman_shaoxing/g9/JS08483.hea (732 bytes) 
JS08483 12 500 5000
JS08483.mat 16x1+24 1000.0(0)/mV 16 0 -24 16710 0 I
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JS08483.mat 16x1+24 1000.0(0)/mV 16 0 -73 7915 0 aVF
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# Age: 79
# Sex: Male
# Dx: 164889003
# Rx: Unknown
# Hx: Unknown
# Sx: Unknown