Hepatitis G virus / GB virus C in Brazil. Preliminary report Vírus da Hepatite G / Vírus GB-C no Brasil oleh J.R.R. Pinho, M.L. Capacci, L.C. da Silva, F.J. Carrilho, C.A. Santos, V Pugliese, B Guz, J.E. Levi, C.A.F. Ballarati, A.P. Bernardini