BRUXELLES - Belgium's largest independent, full-service advertising agency, Duval Guillaume, has been acquired by Publicis Groupe, the world number four marketing services holding company.
    DG will retain its autonomy and continue to operate under its own name from existing offices in Brussels, Antwerp, Paris and New York.
   Ceo Andre Duval will sit on the Publicis Worldwide Board, reporting to Publicis chief operating officer Rick Bendel.