1. Quelques considerations sur le bec-delievre;Demarquay;Gaz Med Paris,1845
2. Fistual labii inferioris congenita and its association with cleft lip and palate;Van der Woude;Am J Hum Genet,1954
3. Congenital fistulas of the lower lip;Soricelli;Oral Surg,1966
4. Oral Facial Genetics;Stewart,1976
5. The syndrome of pits of the lower lip and cleft lip and/or palate. Genetic considerations;Cervenka;Am J Hum Genet,1967