Regulation of immunity at the cellular level.
D000818:Animals; D000917:Antibody Formation; D000937:Antigen-Antibody Reactions; D001665:Binding Sites; D006651:Histocytochemistry; D007109:Immunity; D007120:Immunochemistry; D066298:In Vitro Techniques; D051379:Mice; D008938:Mitosis; D012756:Sheep