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

File: <base>/training/chapman_shaoxing/g8/JS07500.hea (758 bytes) 
JS07500 12 500 5000
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JS07500.mat 16x1+24 1000.0(0)/mV 16 0 -73 -23835 0 V6
# Age: 53
# Sex: Male
# Dx: 426177001,55827005,428750005
# Rx: Unknown
# Hx: Unknown
# Sx: Unknown