CD82 (KAI1), a member of the tetraspan family, is expressed on early haemopoietic progenitor cells and up-regulated in distinct human leukaemias. - Burchert, Andreas; Notter, Michael; Menssen, Hans Dietrich; Schwartz, Stefan; Knauf, Wolfgang; Neubauer, Andreas; Thiel, Eckhard (British Journal of Haematology, 1999)