Human lymphotropic virus type i (htlv-i) and type ii (htlv-ii) infections in blood donors in sao paulo, brazil - Segurado, Aluísio Augusto Cotrim; Malaque, C M S; Pannuti, Cláudio Sérgio; Lal, R B (Interscience Conference on Antimicrobial Agents and Chemotherapy, 1995)