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

File: <base>/training/ningbo/g15/JS25456.hea (755 bytes) 
JS25456 12 500 5000
JS25456.mat 16x1+24 1000.0(0)/mV 16 0 -24 31177 0 I
JS25456.mat 16x1+24 1000.0(0)/mV 16 0 20 18914 0 II
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JS25456.mat 16x1+24 1000.0(0)/mV 16 0 29 31777 0 aVF
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JS25456.mat 16x1+24 1000.0(0)/mV 16 0 20 4435 0 V2
JS25456.mat 16x1+24 1000.0(0)/mV 16 0 -200 878 0 V3
JS25456.mat 16x1+24 1000.0(0)/mV 16 0 -156 -4127 0 V4
JS25456.mat 16x1+24 1000.0(0)/mV 16 0 93 -3373 0 V5
JS25456.mat 16x1+24 1000.0(0)/mV 16 0 -224 12714 0 V6
# Age: 66
# Sex: Male
# Dx: 426177001,55827005,55930002
# Rx: Unknown
# Hx: Unknown
# Sx: Unknown