ESTIMATION OF KI-67 EXPRESSION IN GINGIVAL TISSUES: A CROSS-SECTIONAL STUDY OF SMOKERS AND NON-SMOKERS WITH AND WITHOUT CHRONIC PERIODONTITIS: Neetha, Sownderya et al. CMN [Internet]. 2024 Nov. 1 [cited 2025 Aug. 22];6(2):6731-3. Available from: http://cahiersmagellanes.com/index.php/CMN/article/view/1001