et. al., K .G. Rani Roopha Devi,. “Facial-Based Cardiovascular Diseases Identification for Periodontal Disease Patients Using Deep Learning Modified Neural Networks”. Turkish Journal of Computer and Mathematics Education (TURCOMAT), vol. 12, no. 2, Apr. 2021, pp. 2193 – 2198, https://turcomat.org/index.php/turkbilmat/article/view/1906.