1. Geropsychiatric morbidity in rural Uttar Pradesh;Tiwari;Indian J Psychiatry,1998
2. Ministry of Health and Family Welfare, Government of India . Annual report: health plan and policy. New Delhi: Ministry of Health and Family Welfare, 2002: 15.
3. Population composition. Available: http://censusindia.gov.in/vital_statistics/SRS_Report/9Chap%202%20-%202011.pdf [Accessed 19 Apr 2020].
4. Situational Analysis of The elderly in India . Central Statistics Office. Ministry of Statistics & Programme Implementation, Government of India, 2011. Available: mospi.nic.in/./publication_reports/elderly_in_india.pdf [Accessed 19 Apr 2020].
5. Changes in cognitive function and risk factors for cognitive impairment of the elderly in China: 2005-2014;Zhang;Int J Environ Res Public Health,2019