1. Correction of secondary unilateral and bilateral cleft lip deformities;Hiebert,1990
2. The upper lip sulcus in cleft lips;Horton;Plastic and Reconstructive Surgery,1970
3. Embryology of the lips and chin;Stark,1987
4. Secondary surgery of the lips;Stark,1987
5. Some aspects of bilateral cleft lip;Von Deilen;Plastic and Reconstructive Surgery,1956