1. Institute of Human Genetics; University Medical Center Hamburg-Eppendorf; Hamburg Germany
2. Division of Medical Genetics; Department of Medicine; University of Washington; Seattle Washington
3. Department of Pediatrics; University of Debrecen; Debrecen Hungary
4. Department of Pathology; University of Washington; Seattle Washington
5. Department of Medicine; Universidad Del Norte-CINPE Group; Barranquilla Colombia
6. Geisinger Medical Center; Danville Pennsylvania
7. Department of Dermatology; University of Minnesota; Minnesota
8. New York State Institute for Basic Research in Developmental Disabilities; Staten Island New York
9. Pediatric Genetics; University of Amiens; Amiens France
10. Département de Génétique; Université Claude Bernard Lyon 1 et Hôpital Louis Pradel; Hospices Civils de Lyon; F-69977 Bron CEDEX France
11. Department of Oto-Laryngology and Head and Neck Surgery; University of Debrecen; Debrecen Hungary
12. Diagnoscan Hungary; Debrecen Hungary
13. Institute of Human Genetics; University of Ulm; Ulm Germany