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

File: <base>/training/ningbo/g10/JS20364.hea (780 bytes) 
JS20364 12 500 5000
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JS20364.mat 16x1+24 1000.0(0)/mV 16 0 278 -13275 0 V2
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JS20364.mat 16x1+24 1000.0(0)/mV 16 0 410 13805 0 V4
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# Age: 70
# Sex: Male
# Dx: 164930006,284470004,698252002,426177001,428417006
# Rx: Unknown
# Hx: Unknown
# Sx: Unknown