title: Intracellular effects on Tetrahymena pyriformis following exposure to preimmune and immune fluids: light and transmission electron microscopical observations.
mesh_terms: D000818:Animals; D005260:Female; D006801:Humans; D051379:Mice; D011247:Pregnancy; D013769:Tetrahymena pyriformis / Q000276:immunology* / Q000648:ultrastructure