HTLV-III sero-positivity in European haemophiliacs exposed to factor VIII concentrates imported from the USA - Melbye, M; Madhok, R; Sarin, P S; Lowe, G DO; Goedert, J J; Froebel, K S; Biggar, R J; Senbjerg, S; Forbes, C D; Gallo, R C; Ebbesen, P (Lancet, 1984)