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Bulletin of the World Health Organization|January 1, 1976
The measles eradication programme in the German Democratic RepublicS Dittmann, G Starke, H W Ocklitz, et al.Voprosy Virusologii|November 1, 1979
[Strain specificity of the antineuraminidase antibodies of influenza virus serotype N2 strains in convalescents]E V Molibog, I Konstantinov-Zibelist, G Starke, et al.Pageof 2