Patel, D. D., and R. R. Kusumgar. “Seroprevalence of HIV, Hbsag, HCV and Syphilis in Blood Donors At Tertiary Care Center, Ahmadabad”. National Journal of Integrated Research in Medicine, vol. 9, no. 2, May 2018, pp. 72-75, http://nicpd.ac.in/ojs-/index.php/njirm/article/view/2350.