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

File: <base>/training/georgia/g8/E07903.hea (722 bytes) 
E07903 12 500 5000
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E07903.mat 16x1+24 1000.0(0)/mV 16 0 -180 -28078 0 V6
# Age: 89
# Sex: Female
# Dx: 164889003,164873001
# Rx: Unknown