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

File: <base>/training/chapman_shaoxing/g1/JS00840.hea (770 bytes) 
JS00840 12 500 5000
JS00840.mat 16x1+24 1000.0(0)/mV 16 0 24 -22210 0 I
JS00840.mat 16x1+24 1000.0(0)/mV 16 0 73 29215 0 II
JS00840.mat 16x1+24 1000.0(0)/mV 16 0 49 -14143 0 III
JS00840.mat 16x1+24 1000.0(0)/mV 16 0 -49 2407 0 aVR
JS00840.mat 16x1+24 1000.0(0)/mV 16 0 -15 22913 0 aVL
JS00840.mat 16x1+24 1000.0(0)/mV 16 0 59 -31595 0 aVF
JS00840.mat 16x1+24 1000.0(0)/mV 16 0 288 -6826 0 V1
JS00840.mat 16x1+24 1000.0(0)/mV 16 0 386 31416 0 V2
JS00840.mat 16x1+24 1000.0(0)/mV 16 0 205 10418 0 V3
JS00840.mat 16x1+24 1000.0(0)/mV 16 0 161 -23255 0 V4
JS00840.mat 16x1+24 1000.0(0)/mV 16 0 356 -19551 0 V5
JS00840.mat 16x1+24 1000.0(0)/mV 16 0 224 -25645 0 V6
# Age: 84
# Sex: Male
# Dx: 164889003,164917005,164909002,428750005
# Rx: Unknown
# Hx: Unknown
# Sx: Unknown