ABDULLAH OKAN et al. Frequency of HBsAg/anti-HCV seropositivity and its relationship with risk factors in extrahepatic malignancies. Turkish Journal of Gastroenterology, [S. l.], v. 9, n. 1, p. 28–31, 2019. Disponível em: https://tjg.avesjournals.com/index.php/tjg/article/view/1341. Acesso em: 16 jul. 2025.