Dear experts

I want to create a mask for prefrontal gyrus. I used labels ( 1001, 1003, 1012,1014,1018 etc,)in FreeSurferColorLUT.txt and run the command like following

mri_binarize --i con_sub01/mri/aparc.a2009s+aseg.mgz --out segment.nii.gz --match 1001, 1003, 1012,1014,1018 ----erode 1

But it found 0 voxels in final mask. How should I do ?

Thank you

Wang Kangcheng