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

File: <base>/training/ptb/g1/S0423.hea (710 bytes) 
S0423 12 1000 115200
S0423.mat 16x1+24 1000.0(0)/mv 16 0 674 30664 0 I
S0423.mat 16x1+24 1000.0(0)/mv 16 0 543 29883 0 II
S0423.mat 16x1+24 1000.0(0)/mv 16 0 -131 8609 0 III
S0423.mat 16x1+24 1000.0(0)/mv 16 0 -609 7169 0 aVR
S0423.mat 16x1+24 1000.0(0)/mv 16 0 403 8282 0 aVL
S0423.mat 16x1+24 1000.0(0)/mv 16 0 206 -19271 0 aVF
S0423.mat 16x1+24 1000.0(0)/mv 16 0 284 -27394 0 V1
S0423.mat 16x1+24 1000.0(0)/mv 16 0 291 -16204 0 V2
S0423.mat 16x1+24 1000.0(0)/mv 16 0 506 11751 0 V3
S0423.mat 16x1+24 1000.0(0)/mv 16 0 264 -19454 0 V4
S0423.mat 16x1+24 1000.0(0)/mv 16 0 -213 -3594 0 V5
S0423.mat 16x1+24 1000.0(0)/mv 16 0 -839 -26376 0 V6
# Age: 71
# Sex: Female
# Dx: 164865005
# Rx: Unknown
# Hx: Unknown