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

File: <base>/training/ningbo/g6/JS16443.hea (757 bytes) 
JS16443 12 500 5000
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JS16443.mat 16x1+24 1000.0(0)/mV 16 0 -88 -1584 0 V6
# Age: 73
# Sex: Female
# Dx: 164890007,164934002,55827005
# Rx: Unknown
# Hx: Unknown
# Sx: Unknown