title: Disintegration of functional systems of immunologic defense in the pathogenesis of immunodeficiency states.
mesh_terms: D000818:Animals; D000937:Antigen-Antibody Reactions; D006801:Humans; D007121:Immunocompetence; D007153:Immunologic Deficiency Syndromes / Q000209:etiology* / Q000503:physiopathology