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

File: <base>/training/ningbo/g34/JS44643.hea (754 bytes) 
JS44643 12 500 5000
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JS44643.mat 16x1+24 1000.0(0)/mV 16 0 -190 -28698 0 V6
# Age: 49
# Sex: Male
# Dx: 427084000,55827005
# Rx: Unknown
# Hx: Unknown
# Sx: Unknown