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

File: <base>/training/ptb-xl/g21/HR20646.hea (775 bytes) 
HR20646 12 500 5000
HR20646.mat 16x1+24 1000.0(0)/mv 16 0 -60 28949 0 I
HR20646.mat 16x1+24 1000.0(0)/mv 16 0 60 17045 0 II
HR20646.mat 16x1+24 1000.0(0)/mv 16 0 120 -11939 0 III
HR20646.mat 16x1+24 1000.0(0)/mv 16 0 0 9116 0 aVR
HR20646.mat 16x1+24 1000.0(0)/mv 16 0 -90 20111 0 aVL
HR20646.mat 16x1+24 1000.0(0)/mv 16 0 90 -30855 0 aVF
HR20646.mat 16x1+24 1000.0(0)/mv 16 0 115 -5673 0 V1
HR20646.mat 16x1+24 1000.0(0)/mv 16 0 -40 11128 0 V2
HR20646.mat 16x1+24 1000.0(0)/mv 16 0 -60 27435 0 V3
HR20646.mat 16x1+24 1000.0(0)/mv 16 0 315 -24737 0 V4
HR20646.mat 16x1+24 1000.0(0)/mv 16 0 60 -8785 0 V5
HR20646.mat 16x1+24 1000.0(0)/mv 16 0 -40 21899 0 V6
# Age: 75
# Sex: Male
# Dx: 164865005,164951009,39732003,426783006,445118002
# Rx: Unknown
# Hx: Unknown
# Sx: Unknown