SONSUZ, Abdullah, et al. “LIVER DISEASES WITH ISOLATED CORE ANTIBODY (Anti-HBc) TO HEPATiTiS B VIRUS”. Turkish Journal of Gastroenterology, vol. 3, no. 1, Jan. 1992, pp. 19-21, https://turkjgastroenterol.org/index.php/tjg/article/view/81.