Mahmoudvand, S., S. Shokri, H. Mirzaei, M. Makvandi, A. Teimoori, N. Neisi, and R. Pirmoradi. “Study on the Prevalence of Occult Hepatitis B Virus Infection in Patients Undergoing Hemodialysis”. Acta Medica Iranica, Vol. 58, no. 4, July 2020, pp. 177-82, https://acta.tums.ac.ir/index.php/acta/article/view/8206.