Copies of author's previously published works inserted. / Bibliography: leaves 230-282. / 291 leaves : / Title page, contents and abstract only. The complete thesis in print form is available from the University Library. / Covers clinical data relating to trials with two antiretroviral agents, didanosine and foscarnet, conducted at St Stephen's clinic, London, discussing aspects of their therapetic efficacy, effect on survival, clinical and laboratory tolerability. / Thesis (M.D.)--University of Adelaide, Dept. of Medicine, 1995