El Khouri, Marcelo, and Vera Aparecida dos Santos. “ Hepatitis B: Epidemiological, Immunological, and Serological Considerations Emphasizing Mutation ”. Revista do Hospital das Clínicas 59, no. 4 (January 1, 2004): 216–224. Accessed June 16, 2024. https://www.journals.usp.br/rhc/article/view/30371.