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2. The Health of Regionville: What They Thought and Did About It;Koos,1954
3. Alienation as a deterrent to well-child supervision;Morris;Am. J. Publ. Hlth,1966
4. The effects of social class and friends' expectations on oral polio vaccination participation;Gray;Am. J. Publ. Hlth,1966
5. Socio-economic status and participation on the poliomyelitis vaccine trial;Deasy;Am. Sociol. Rev.,1956