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

File: <base>/training/ningbo/g34/JS44225.hea (760 bytes) 
JS44225 12 500 5000
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JS44225.mat 16x1+24 1000.0(0)/mV 16 0 -54 -8595 0 V2
JS44225.mat 16x1+24 1000.0(0)/mV 16 0 -83 4691 0 V3
JS44225.mat 16x1+24 1000.0(0)/mV 16 0 -88 27076 0 V4
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JS44225.mat 16x1+24 1000.0(0)/mV 16 0 -132 14638 0 V6
# Age: 63
# Sex: Female
# Dx: 164934002,427084000,59931005
# Rx: Unknown
# Hx: Unknown
# Sx: Unknown