to ascertain whether huntington 's chorea and schizophrenia are associated with specific regional alterations in neurotensin , somatostatin , and thyrotropin-releasing hormone , the concentrations of these putative neurotransmitters were measured by radioimmunoassay in postmortem brain samples from patients with huntington 's chorea or schizophrenia .
C0086045
concentrations
C0006104
brain