S. Kaliamoorthy, M. Nagarajan, V. Sethuraman, K. Jayavel, V. Lakshmanan, and S. Palla, “Association of Alzheimer’s disease and periodontitis - a systematic review and meta-analysis of evidence from observational studies”, Medicine and Pharmacy Reports, vol. 95, no. 2, pp. 144-151, Feb. 2022.