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

File: <base>/training/ptb-xl/g13/HR12721.hea (775 bytes) 
HR12721 12 500 5000
HR12721.mat 16x1+24 1000.0(0)/mv 16 0 -30 29931 0 I
HR12721.mat 16x1+24 1000.0(0)/mv 16 0 340 -3215 0 II
HR12721.mat 16x1+24 1000.0(0)/mv 16 0 370 32386 0 III
HR12721.mat 16x1+24 1000.0(0)/mv 16 0 -155 19096 0 aVR
HR12721.mat 16x1+24 1000.0(0)/mv 16 0 -200 31614 0 aVL
HR12721.mat 16x1+24 1000.0(0)/mv 16 0 355 14529 0 aVF
HR12721.mat 16x1+24 1000.0(0)/mv 16 0 -230 17946 0 V1
HR12721.mat 16x1+24 1000.0(0)/mv 16 0 -215 27841 0 V2
HR12721.mat 16x1+24 1000.0(0)/mv 16 0 330 -24538 0 V3
HR12721.mat 16x1+24 1000.0(0)/mv 16 0 -20 -22364 0 V4
HR12721.mat 16x1+24 1000.0(0)/mv 16 0 -90 7277 0 V5
HR12721.mat 16x1+24 1000.0(0)/mv 16 0 -15 -6899 0 V6
# Age: 75
# Sex: Female
# Dx: 164865005,39732003,426783006,445118002
# Rx: Unknown
# Hx: Unknown
# Sx: Unknown