1. Francis, T. Jr., Salk, J. A simplified procedure for the concentration and purification of influenza virus. Science 96: 499–500. 1942.
2. Commission on Influenza: A clinical evaluation of vaccination against influenca. J. Am. Med. Assoc. 124:982–985. 1944.
3. Salk, J.E., Bennett, B.L., Lewis, L.J., et al. Studies in human subjects on active immunization against poliomyelitis. 1. A preliminary report of experiments in progress. Ibid. 151:1081–1098. 1953.
4. Salk, J.E., Contakos, M., Laurent, A.M.,et al. Use of adjuvants in studies on influenza immunization. 3. Degree of persistence of antibody in human subjects two years after vaccination. Ibid. 151:1169–1175. 1953.
5. Beebe, G.W., Simon, A.H., Vivona, S. Follow-up study on army personnel who received adjuvant influenza virus vaccine. Am. J. Med. Sci. 247:385–406. 1964.