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

File: <base>/training/chapman_shaoxing/g7/JS07201.hea (750 bytes) 
JS07201 12 500 5000
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JS07201.mat 16x1+24 1000.0(0)/mV 16 0 -63 21882 0 II
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JS07201.mat 16x1+24 1000.0(0)/mV 16 0 -15 17142 0 V6
# Age: 71
# Sex: Female
# Dx: 426177001,164934002
# Rx: Unknown
# Hx: Unknown
# Sx: Unknown