Shankar Prasad Nandi, and Ratul Banerjee. “Risk Factors, Comorbidities, and Social Factors Associated With Alzheimer Disease - An Observational Study from Eastern India”. International Journal of Health and Clinical Research, vol. 5, no. 3, Jan. 2022, pp. 421-4, https://ijhcr.com/index.php/ijhcr/article/view/4438.