1. Phase contrast microscope study of oral epithelium of normal and vitamin A deficient rats;Baume,1953
2. Effects of vitamin A deficiency on the periodontal tissues;Boyle;Am. J. Orthod. OralSurg.,1947
3. The effect of acute vitamin A deficiency on the molar teeth and paradontal tissues, with a comment on deformed incisor teeth in this deficiency;Boyle;J. dent. Res.,1941
4. Periodontal tissue changes in vitamin A deficient young rats;Frandsen;Acta odont. scand.,1963
5. The periodontal tissues of the albino rat in vitamin A deficiency;Glickman;J. dent. Res.,1948