Sanjay Goyal, et al. “A Study of Prevalence of HCV HIV Co-Infection in a Tertiary Health Care Centre in Punjab”. GMC Patiala Journal of Research and Medical Education, vol. 2, no. 2, Dec. 2019, pp. 9-13, https://jrme.gmcpatiala.edu.in/index.php/j/article/view/45.