- Poliomyelitis prevention in the United States. Updated recommendation of the
 Advisory Committee on Immunization Practices (ACIP) MMWR (Morbidity and
 Mortality Weekly Reports (CDC), May 19, 2000.
- “March of Dimes Birth Defects Foundation”. Web site http://www.modimes.com
- Rivers, Ibid., pp. 236, 251, 252.
- Quoted by Paul DeKruif: The Fight for Life Harcourt, Brace and Company,
 Chapters 7-10.
- Armstrong, C. and Harrison, W. T.: Prevention of experimental intranasal
 infection with certain neurotropic viruses by means of chemicals instilled into the
 nostrils Public Health Reports 51: 203-215, February 28, 1936.
- Armstrong, C. and Harrison, W. T.: Prevention of intranasally inoculated
 encephalitis (Saint Louis type) in mice and poliomyelitis in monkeys by means of
 chemicals instilled into the nostrils Public Health Reports 51: 1105-1113, August
 14, 1936.
- Armstrong, C. and Harrison, W. T.: Prevention of intranasally inoculated
 poliomyelitis of monkeys by installation of alum into the nostrils Public Health
 Reports 50: 43-50. January 11, 1935.
- Armstrong, C.: Prevention of intravenously inoculated poliomyelitis of monkeys
 by intranasal instillation of picric acid Public Health Reports 51: 241-243, March
 6, 1936.
- Sabin, A. B., Olitsky, P. K., and Cox, H. E.: Journal of Experimental Medicine
 63: 877-892, 1936, quoted by Armstrong and Harrison PHR August 14, 1936.
                    
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