Molecular investigation of occult hepatitis B virus infection in a reference center in Northern Brazil Suellen dos Reis Araújo; Andreza Pinheiro Malheiros; Vânia Pinto Sarmento; Heloisa Marceliano Nunes; Pedro Eduardo Bonfim Freitas;

Survival after liver transplantation from hepatitis B-core positive donors at a quaternary care hospital in Brazil Fabiana Siroma; Edson Abdala; Stefanie Lima do Nascimento Castro; Wellington Andraus; Luiz Augusto Carneiro D´Álbuquerque; Alice Tung Wan Song;

Seroprevalence of viral transfusion transmissible infections (HBsAg, anti-HCV, anti-HIV, Syphilis) and coinfection among healthy volunteer blood donors during 5-years in Luanda, Angola¿ Angelina Edna Quintas; Cláudia Camila Dias; Adis Del Carmen Cogle; Lemuel Cordeiro; António Sarmento;