1. Secondary lip correction in unilateral clefts;Farmand;Facial Plast Surg,2002
2. Secondary deformities of cleft lip, nose, and cleft palate;Jackson,1990
3. The unilateral deformity;Millard,1976
4. Bilateral and rare deformities;Millard,1976
5. Secondary deformities of unilateral cleft lip and nose;Hogan,1971