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

File: <base>/training/ptb/g1/S0456.hea (714 bytes) 
S0456 12 1000 120012
S0456.mat 16x1+24 1000.0(0)/mv 16 0 -1575 9043 0 I
S0456.mat 16x1+24 1000.0(0)/mv 16 0 -2386 27966 0 II
S0456.mat 16x1+24 1000.0(0)/mv 16 0 -811 22140 0 III
S0456.mat 16x1+24 1000.0(0)/mv 16 0 1981 11725 0 aVR
S0456.mat 16x1+24 1000.0(0)/mv 16 0 -382 -3714 0 aVL
S0456.mat 16x1+24 1000.0(0)/mv 16 0 -1599 -5920 0 aVF
S0456.mat 16x1+24 1000.0(0)/mv 16 0 605 15907 0 V1
S0456.mat 16x1+24 1000.0(0)/mv 16 0 1594 16477 0 V2
S0456.mat 16x1+24 1000.0(0)/mv 16 0 844 -22891 0 V3
S0456.mat 16x1+24 1000.0(0)/mv 16 0 -386 13270 0 V4
S0456.mat 16x1+24 1000.0(0)/mv 16 0 219 -30149 0 V5
S0456.mat 16x1+24 1000.0(0)/mv 16 0 -344 6431 0 V6
# Age: 56
# Sex: Male
# Dx: 164865005
# Rx: Unknown
# Hx: Unknown