  We consider Clifford algebras with nonsymmetric bilinear forms, which are
isomorphic to the standard symmetric ones, but not equal. Observing, that the
content of physical theories is dependent on the injection $\oplus^n\bigwedge
\V^{(n)}\to CL({\cal V},Q)$ one has to transform to the standard construction.
The injection is of course dependent on the antisymmetric part of the bilinear
form. This process results in the appropriate vertex normalordering terms,
which are now obtained from the theory itself and not added ad hoc via a
regularization argument.
