title: Mathematical aspects of periodic catatonic schizophrenia.
mesh_terms: D001481:Basal Metabolism; D006801:Humans; D008954:Models, Biological; D008960:Models, Psychological; D010507:Periodicity; D012560:Schizophrenia, Catatonic / Q000503:physiopathology*; D013961:Thyroid Gland / Q000503:physiopathology