V. T. Thamarai Selvi, Dr. Sankari Malaiappan. “Comparison of Salivary PH and Clinical Periodontal Status in Smokers With and Without Periodontitis”. Journal of Coastal Life Medicine 10 (October 7, 2022): 648–656. Accessed May 5, 2024. https://www.jclmm.com/index.php/journal/article/view/116.