Singh, Gurvinder pal, and Sonali Aggarwal. “The Implications of COVID-19 on the Mental Health of Patients With Treatment-Resistant Depression: Challenges and Recent Strategies”. Indian Journal of Integrative Medicine 2, no. 3 (August 13, 2022): 77–78. Accessed December 5, 2025. https://www.mansapublishers.com/ijim/article/view/3476.