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

File: <base>/training/ptb-xl/g22/HR21454.hea (750 bytes) 
HR21454 12 500 5000
HR21454.mat 16x1+24 1000.0(0)/mv 16 0 -20 13698 0 I
HR21454.mat 16x1+24 1000.0(0)/mv 16 0 65 -26642 0 II
HR21454.mat 16x1+24 1000.0(0)/mv 16 0 85 25192 0 III
HR21454.mat 16x1+24 1000.0(0)/mv 16 0 -23 5657 0 aVR
HR21454.mat 16x1+24 1000.0(0)/mv 16 0 -53 26292 0 aVL
HR21454.mat 16x1+24 1000.0(0)/mv 16 0 75 31177 0 aVF
HR21454.mat 16x1+24 1000.0(0)/mv 16 0 5 13436 0 V1
HR21454.mat 16x1+24 1000.0(0)/mv 16 0 35 1430 0 V2
HR21454.mat 16x1+24 1000.0(0)/mv 16 0 65 -11361 0 V3
HR21454.mat 16x1+24 1000.0(0)/mv 16 0 45 16765 0 V4
HR21454.mat 16x1+24 1000.0(0)/mv 16 0 -10 11710 0 V5
HR21454.mat 16x1+24 1000.0(0)/mv 16 0 -25 22259 0 V6
# Age: 60
# Sex: Male
# Dx: 164909002,39732003,426783006
# Rx: Unknown
# Hx: Unknown
# Sx: Unknown