Antony, J., A. Nakulan, and S. John. “Association Between Socio-Demographic Profile and Severity of Cognitive Impairment in Elder Patients Presenting With New Onset of Psychiatric Symptoms: A Cross Sectional Study”. International Journal of Research in Medical Sciences, vol. 7, no. 7, June 2019, pp. 2519-23, doi:10.18203/2320-6012.ijrms20192579.