1. Classification of congenital clefts of the lip and palate;Davis;JAMA,1922
2. Division: Palative, Anatomie, Chirurgie, Phonetique;Veau,1931
3. Advances in the Management of Cleft Palate;Edwards,1980
4. The Inheritance of Cleft Lip and Cleft Palate;Fogh-Anderson,1942
5. A new classification for cleft lips and palates;Kernahan;Plast Reconst Surg,1958