title: [Intractable diseases and experimental models].
mesh_terms: D000818:Animals; D004195:Disease Models, Animal; D006801:Humans; D007154:Immune System Diseases / Q000209:etiology* / Q000503:physiopathology; D051379:Mice; D009422:Nervous System Diseases / Q000209:etiology* / Q000503:physiopathology; D051381:Rats