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

File: <base>/training/ningbo/g2/JS12457.hea (744 bytes) 
JS12457 12 500 5000
JS12457.mat 16x1+24 1000.0(0)/mV 16 0 -20 5729 0 I
JS12457.mat 16x1+24 1000.0(0)/mV 16 0 44 10910 0 II
JS12457.mat 16x1+24 1000.0(0)/mV 16 0 63 5138 0 III
JS12457.mat 16x1+24 1000.0(0)/mV 16 0 -10 -2323 0 aVR
JS12457.mat 16x1+24 1000.0(0)/mV 16 0 -44 -5716 0 aVL
JS12457.mat 16x1+24 1000.0(0)/mV 16 0 54 1717 0 aVF
JS12457.mat 16x1+24 1000.0(0)/mV 16 0 68 -4210 0 V1
JS12457.mat 16x1+24 1000.0(0)/mV 16 0 54 4534 0 V2
JS12457.mat 16x1+24 1000.0(0)/mV 16 0 5 8920 0 V3
JS12457.mat 16x1+24 1000.0(0)/mV 16 0 181 -4749 0 V4
JS12457.mat 16x1+24 1000.0(0)/mV 16 0 44 7393 0 V5
JS12457.mat 16x1+24 1000.0(0)/mV 16 0 98 30086 0 V6
# Age: 67
# Sex: Male
# Dx: 164890007,164934002,195042002
# Rx: Unknown
# Hx: Unknown
# Sx: Unknown