[Neurological diseases and mental retardation, with major emphasis on degenerative diseases].
D001847:Bone Diseases / Q000150:complications; D005128:Eye Diseases / Q000150:complications; D006801:Humans; D008607:Intellectual Disability / Q000145:classification / Q000209:etiology*; D009422:Nervous System Diseases / Q000150:complications*; D012871:Skin Diseases / Q000150:complications