1. Influenza neuraminidase and neuraminidase inhibition test procedures;Aymard-Henry;Bull. WHO,1973
2. Natural history of influenza type A in the United States 1957–1972;Dowdle;Progr. Med. Viral.,1974
3. Disquisitions on original antigenic sin: Evidence in man;Fazekas De St. Groth;J. Exp. Med.,1966
4. The analysis of the monoclonal immune response to influenza virus. II. The antigenicity of the viral hemagglutinin;Gerhard;J. Exp. Med.,1976
5. The delineation of antigenic determinants of the hemagglutinin of influenza A viruses by means of monoclonal antibodies;Gerhard,1978