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

File: <base>/training/ningbo/g20/JS30072.hea (738 bytes) 
JS30072 12 500 5000
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JS30072.mat 16x1+24 1000.0(0)/mV 16 0 -88 -12611 0 V6
# Age: 51
# Sex: Male
# Dx: 426177001
# Rx: Unknown
# Hx: Unknown
# Sx: Unknown