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

File: <base>/training/ptb/g1/S0004.hea (709 bytes) 
S0004 12 1000 115200
S0004.mat 16x1+24 1000.0(0)/mv 16 0 274 20431 0 I
S0004.mat 16x1+24 1000.0(0)/mv 16 0 -35 -12816 0 II
S0004.mat 16x1+24 1000.0(0)/mv 16 0 -308 30980 0 III
S0004.mat 16x1+24 1000.0(0)/mv 16 0 -119 -4648 0 aVR
S0004.mat 16x1+24 1000.0(0)/mv 16 0 291 -8175 0 aVL
S0004.mat 16x1+24 1000.0(0)/mv 16 0 -172 9521 0 aVF
S0004.mat 16x1+24 1000.0(0)/mv 16 0 680 11355 0 V1
S0004.mat 16x1+24 1000.0(0)/mv 16 0 333 -5667 0 V2
S0004.mat 16x1+24 1000.0(0)/mv 16 0 391 -16652 0 V3
S0004.mat 16x1+24 1000.0(0)/mv 16 0 55 12984 0 V4
S0004.mat 16x1+24 1000.0(0)/mv 16 0 -384 -9469 0 V5
S0004.mat 16x1+24 1000.0(0)/mv 16 0 -198 -6681 0 V6
# Age: 58
# Sex: Female
# Dx: 164865005
# Rx: Unknown
# Hx: Unknown