Clinical Linguist, Speech Language Pathologist PhD: Early speech and language development in children born with a Cleft Lip and/or Palate 1999. Specialized in SLI, SPS and writer of articles on phonological problems. Coordinator and author Renfrew Language Scales Dutch Adaptation (Jansonius, Borgers a.o. 2007), KINO-database RTNA transcripts and scores typical children 4-10 years of age. With Dr. M. Borgers, Drs. I. Feiter, Dr. A. Scheper teaching in clinical linguistic problems assessed with the RTNA (at Pro-education Amsterdam, St. Marie Eindhoven).