Pakker, N. G. (1998). T-cell dynamics in HIV-1 infection. The effect of therapy. [Thesis, fully internal, Universiteit van Amsterdam].
van der Plas, R. N. (1998). Clinical management and treatment options in children with defaecation disorders. [Thesis, fully internal, Universiteit van Amsterdam].
Polkowski, W. (1998). Barrett esophagus and cancer. Diagnostic, molecular and prognostic aspects. [Thesis, fully internal, Universiteit van Amsterdam].
Pompen, M. (1998). In vitro studies into modulation of human mast cell biology by airway epithelial cells. [Thesis, fully internal, Universiteit van Amsterdam].
Roos, J. (1998). Lymphocyte interactions in immune dysregulation and autoimmunity. [Thesis, fully internal, Universiteit van Amsterdam].
Ringrose, J. H. (1998). The role of HLA-B27 in the pathogenesis of spondyloarthropathies. [Thesis, fully internal, Universiteit van Amsterdam].
Roos, M. T. L. (1998). Development and evaluation of immunological prognostic markers in HIV infection. [Thesis, fully internal, Universiteit van Amsterdam].
Rostami, K. (1998). Coeliac disease: pittfalls in screening. [Thesis, externally prepared, Universiteit van Amsterdam].
Kalsbeek, J. (1998). The Cakavian Dialect of Orbanici near Zminj in Istria. [Thesis, internally prepared, Universiteit Leiden]. Rodopi.
Nocker, R. E. T. (1998). Airway inflammation in asthma. Studies on allergen challenge and corticosteroid treatment. [Thesis, fully internal, Universiteit van Amsterdam].