Tuluce, Derya, Emine Kaplan Serin, and Sevinc Kutluturkan. “Oral Mucous Membrane Condition of the Patients With Chronic Obstructive Pulmonary Disease and the Measures Taken for the Protection”. Annals of Medical Research 27, no. 11 (May 25, 2021): 2994–2999. Accessed December 21, 2024. http://annalsmedres.org/index.php/aomr/article/view/1038.