Shukla , D., S. Patel, S. Panchal, N. Shah, S. Sridharan, and P. . Patel. “Awareness Regarding Swine Flu Amongst Patients Attending Swine Flu OPD In a Tertiary Care Center in South Gujarat”. National Journal of Community Medicine, vol. 1, no. 02, Dec. 2010, pp. 103-5, https://njcmindia.com/index.php/file/article/view/2001.