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

File: <base>/training/ningbo/g2/JS11656.hea (763 bytes) 
JS11656 12 500 5000
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JS11656.mat 16x1+24 1000.0(0)/mV 16 0 1791 7981 0 V2
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JS11656.mat 16x1+24 1000.0(0)/mV 16 0 -522 -13260 0 V6
# Age: 76
# Sex: Male
# Dx: 270492004,427084000,733534002
# Rx: Unknown
# Hx: Unknown
# Sx: Unknown