Otlu, B., and R. Durmaz. “Hepatitis E Virüs (HEV) Seropositivity in Blood Donors: The Efect of Some Demographic Characteristics on HEV Seroprevalence”. Annals of Medical Research, vol. 8, no. 3, May 2021, pp. 0135-7, http://annalsmedres.org/index.php/aomr/article/view/2861.