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

File: <base>/training/georgia/g1/E00503.hea (720 bytes) 
E00503 12 500 5000
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E00503.mat 16x1+24 1000.0(0)/mV 16 0 -34 19239 0 aVF
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E00503.mat 16x1+24 1000.0(0)/mV 16 0 -117 6068 0 V2
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E00503.mat 16x1+24 1000.0(0)/mV 16 0 -97 14333 0 V6
# Age: 59
# Sex: Male
# Dx: 270492004,426177001
# Rx: Unknown
# Hx: Unknown