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2. Review of the sleeping sickness situation;Janssens;Zeitschrift für Tropenmedizin und Parasitologie,1971
3. Animal reservoirs and Gambian trypanosomiasis;Molyneux;Annales de la Société Belge de Médécine Tropicale,1973
4. The testing of proven Trypanosoma brucei and T. rhodesiense strains by the blood incubation infectivity test;Rickman;Bulletin of the World Health Organisation,1970