Lessons from a multicentre study of the detectability of viral genomes based on a two-round quality control of GB virus C (GBV-C)/hepatitis G virus (HGV) polymerase chain reaction assay. - Lefrère JJ; Lerable J; Mariotti M; Bogard M; Thibault V; Frangeul L; Loiseau P; Bouchardeau F; Laperche S; Pawlotsky JM; Cantaloube JF; Biagini P; et al. (Journal of virological methods, 2000)