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3. Food additives derived from lactose; lactitol and lactitol palmitate;van Velthuijsen JA;J Agric Food Chem,1979
4. Erstmaligne Anwendung von Lactitol in der Behandlung de porto-systemischen Enzephalopathie;Schweiz Med Wochenschr,1982
5. Trailmaking and number-connection tests in the assessment of mental state in portal systemic encephalopathy;Conn, H.O.;Am J Dig Dis,1977