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

File: <base>/training/ningbo/g31/JS40961.hea (732 bytes) 
JS40961 12 500 5000
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JS40961.mat 16x1+24 1000.0(0)/mV 16 0 -20 5258 0 aVF
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JS40961.mat 16x1+24 1000.0(0)/mV 16 0 29 -28503 0 V2
JS40961.mat 16x1+24 1000.0(0)/mV 16 0 -29 27480 0 V3
JS40961.mat 16x1+24 1000.0(0)/mV 16 0 -39 22054 0 V4
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JS40961.mat 16x1+24 1000.0(0)/mV 16 0 -54 16350 0 V6
# Age: 40
# Sex: Male
# Dx: 426783006
# Rx: Unknown
# Hx: Unknown
# Sx: Unknown