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3. Disturbed serum proteins in chronic psychosis;Fessel;Arch. Gen. Psychiat.,1961
4. Gulyash, J.: Personal communication, June 28, 1960.
5. Retinitis pigmentosa combined with congenital deafness; with vestibulo-cerebellar ataxia and mental abnormality in a proportion of cases: A clinical and genetico-statistical study;Hallgren;Acta Psychiat. Neurol. Scand.,1959