Provided by: ants_2.2.0-1ubuntu1_amd64 bug


       StackSlices - part of ANTS registration suite


       StackSlices outputvolume x y z inputvolume(s)


              The specific slice is chosen by specifying the index for x, y, xor z.  For example,
              an "x y z" selection of "30 -1 -1" will stack slice 30 along the  first  dimension.
              Also note that input 4-D volumes are treated as a series of 3-D volumes.