Seroconversion of human T cell lymphotrophic virus III (HTLV-III) in patients with haemophilia: a longitudinal study. Issue 6483 (8th June 1985) - Ball, S E; Hows, J M; Worsley, A M; Luzzatto, L; Chu, A C; Meacham, R; Morris, J; Cheingsong-Popov, R; Weiss, R A; Tedder, R