PAGE-B and REACH-B Predicts the Risk of Developing Hepatocellular Carcinoma in Chronic Hepatitis B Patients from Northeast, Brazil oleh Alessandra Porto de Macedo Costa, Marcos Antonio Custódio Neto da Silva, Rogério Soares Castro, Ana Leatrice de Oliveira Sampaio, Antônio Machado Alencar Júnior, Márcia Costa da Silva, Adalgisa de Souza Paiva Ferreira