- Schultz, E. W. and Gebhardt, L.P.: Proceedings of the Society for Experimental
 Biology and Medicine 34: 133-135, 1936, quoted by Armstrong and Harrison
 PHR August 14, 1936.
- Armstrong, C. Experience with picric acid-alum spray in the prevention of
 poliomyelitis in Alabama American Journal of Public Health 27: 103-111,
 February 1937; also in the Journal of the Medical Association of Alabama 6: 278-
 285, February 1937.
- DeKruif, Fight for Life, Ibid.
- Rivers, Ibid.
- Rivers, Ibid., pp. 227-232.
- Armstrong oral interview, Ibid.
- Rivers, Ibid., pp. 227-228.
- Rivers, Ibid., pp. 231-232.
- River, Ibid., p. 232.
- Armstrong, C. The experimental transmission of poliomyelitis to the Eastern
 cotton rat, Sigmodon hispidus hispidus Public Health Reports 54: 1719-1721,
 September 22, 1939.
- Lillie, R. D. and Armstrong, C.: The pathology of poliomyelitis experimentally
 induced in the Eastern cotton rat, Sigmodon hispidus hispidus Public Health
 Reports 55; 115-119, January 19, 1940; also Cerebrospinal pathology of
 experimental poliomyelitis in the Eastern cotton rat and in the white mouse Public
 Health Reports 55: 718-725’ April 25, 1940.
                    
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