  An expression for the spin-orbit interaction coupling between different
levels, which was shown to be aberrant more than thirty years ago is used in a
recent article [K. Amos, L. Canton, G.Piseni, J. P. Svenne and D. van der
Knijff, Nucl. Phys. A 728, 65 (2003)]. It leads to expressions quite simpler
than they should be. Its behavior is in fact of a character opposite to that of
the spin-orbit interaction used in two-body studies.
