Polyganics Appoints Two New Supervisory Board Members PR Newswire GRONINGEN, The Netherlands, July 4, 2012 GRONINGEN, The Netherlands, July 4, 2012 /PRNewswire/ -- Dr. Cees de Jong (former COO Crucell) appointed Chairman of the Board. Ms. Annemieke Wouterse (N.O.M.) appointed member of the board.