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

File: <base>/training/ningbo/g4/JS14227.hea (765 bytes) 
JS14227 12 500 5000
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JS14227.mat 16x1+24 1000.0(0)/mV 16 0 -59 11213 0 aVR
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JS14227.mat 16x1+24 1000.0(0)/mV 16 0 346 6428 0 V2
JS14227.mat 16x1+24 1000.0(0)/mV 16 0 654 20440 0 V3
JS14227.mat 16x1+24 1000.0(0)/mV 16 0 849 -21399 0 V4
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JS14227.mat 16x1+24 1000.0(0)/mV 16 0 -234 -21147 0 V6
# Age: 61
# Sex: Male
# Dx: 164917005,164890007,10370003
# Rx: Unknown
# Hx: Unknown
# Sx: Unknown