R. . . R. Al-Dafaai, B. . . S. Diab, and H. . A. A.-. G. J. Abd Al- Ghani, “Personality Types in Relation to the Periodontal Health Status and Salivary Dehydroepiandrosterone among Teachers in Baghdad City”, J Bagh Coll Dent, vol. 28, no. 4, pp. 144–48, Dec. 2016, doi: 10.12816/0033226.