1. National Institute of Mental Health. Major Depression among Adults; 2017. https://www.nimh.nih.gov/health/statistics/major-depression.shtml.
2. World Health Organization. Ageing and Health; 2018. https://www.who.int/news-room/fact-sheets/detail/ageing-and-health.
3. Depression in Later Life: An Overview with Treatment Recommendations;JM Ellison;Psychiatric Clinics of North America,2012
4. The Indirect Costs of Late-Life Depression in the United States: A Literature Review and Perspective;CE Snow;Geriatrics,2016
5. Discovering Disrupted Connectivities in Neuroimaging Studies: A Meta Analytic Approach;R Bhaumik;Annals of Biostatistics & Biometric Applications,2020