Arora, Balvinder Singh, Monika Matlani, Karnika Saigal, Indu Biswal, Santhosh Rajan, Arun Padmanandan, and Saudan Singh. “Major Aetiologies of Acute Undifferentiated Fever in 2013 and 2014: An Experience in Retrospect”. International Journal of Advances in Medicine 4, no. 2 (March 23, 2017): 568–572. Accessed December 25, 2025. https://www.ijmedicine.com/index.php/ijam/article/view/582.