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

File: <base>/training/ningbo/g2/JS12406.hea (759 bytes) 
JS12406 12 500 5000
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JS12406.mat 16x1+24 1000.0(0)/mV 16 0 190 8795 0 V2
JS12406.mat 16x1+24 1000.0(0)/mV 16 0 68 21204 0 V3
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JS12406.mat 16x1+24 1000.0(0)/mV 16 0 15 -25877 0 V6
# Age: 83
# Sex: Female
# Dx: 270492004,164934002,427084000
# Rx: Unknown
# Hx: Unknown
# Sx: Unknown