Includes nine pages of amendments. / Bibliography: leaves 140-211. / 211, [200] leaves, [12] leaves of plates : ill. (some col.) ; 30 cm. / Title page, contents and abstract only. The complete thesis in print form is available from the University Library. / Aims to determine the reason for the lack of ability of many myeloid leukaemic cell populations to stimulate allogeneic lymphocytes in mixed leucocyte culture (MLC), with a view to manipulating the immunogenicity of these cells for therapeutic purposes. / Thesis (Ph.D.)--University of Adelaide, Dept. of Microbiology and Immunology, 1995