D. N. S. B. D. S. K. bai, Dr. M. Bharathi, D. M. Sasidhar, and D. A. Sasikala, “A Study on Dengue Infection among Febrile Illness Cases in a Tertiary Care Hospital in South India”, ijirms, vol. 1, no. 09, p. 363 to 365, Feb. 2017.