1. Epidemiological and aetiological aspects of cleft lip and palate—A study of 2037 patients;Amaratunga;Ceylon Medical Journal,1986
2. Orthodontic Diagnosis;Beresford,1965
3. Classification and Nomenclature of Malformation;Lancet,1974
4. The Robin anomalad: its non-specificity and associated syndromes;Cohen;Journal of Oral Surgery,1976
5. Correlation between alterations in Meckel's cartilage and induction of cleft palates with β- amino-proprionitrate in the rat;Diewert;Teratology,1981