Isolation of new lymphotropic retroviruses from two siblings with haemophilia B, one with AIDS - Vilmer, E; Barré-Sinoussi, F; Rouzioux, C; Gazengel, G; Vezinet-Brun, F; Dauguet, C; Fischer, A; Manigne, P; Chermann, J C; Griscelli, C; Montagnier, L (Lancet, 1984)