U. Amjad, Y. Khan, M. J. Qadri, N. Amjad, and M. Habib-e-Ajmi, “Prevalence of HBV, HCV, HIV, and syphilis among potential expatriates entering GCC states in different districts of KPK, Pakistan”, Int. J. Appl. Exp. Biol., vol. 4, no. 2, pp. 191–200, Jul. 2025.