1. News from the Field
2. Poliomyelitis Surveillance Report No. 1. May 1, 1955, Poliomyelitis Surveillance Unit, Epidemiology Branch Communicable Disease Center, Public Health Service, U. S. DHEW, Atlanta, Georgia.
3. See Poliomyelitis Surveillance Reports Nos. 1–55, issued during 1955.
4. Report on poliomyelitis vaccine produced by the Cutter Laboratories. Mimeographed report, August 25, 1955, Public Health Service, U. S. Department of Health, Education, and Welfare, Bethesda, Md. See New York Times, August 26, 1955, 104: p. 1. col. 6; p. 6, col. 3.