Gamze Demirdag, H., Y. Karincaoglu, S. Cayli, and S. Yologlu. “Relationship Between Periodontal Findings and Chronic Urticaria”. Annals of Medical Research, vol. 18, no. 4, May 2021, pp. 0232-5, http://www.annalsmedres.org/index.php/aomr/article/view/3395.