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Varaztad Hovannes Kazanjian, C.M.G., M.D., D.M.D., Sc.D. Br Dent J 138, 73–74 (1975). https://doi.org/10.1038/sj.bdj.4803375
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DOI: https://doi.org/10.1038/sj.bdj.4803375