Dynamical diseases.
D004194:Disease / Q000209:etiology*; D006402:Hematologic Diseases / Q000209:etiology; D006801:Humans; D008433:Mathematics; D008954:Models, Biological; D012140:Respiratory Tract Diseases / Q000209:etiology; D012560:Schizophrenia, Catatonic / Q000209:etiology