1. Agras, S., Sylvester, D., and Oliveau, D. (1969). The epidemiology of common fears of dentistry.Comp. Psychiat. 10: 151?156.
2. Aguilera, D. C. (1967). Relationship between physical contact and verbal interaction between nurses and patients.J. Psychiat. Nurs. 5: 5?21.
3. Ayer, W. A., and Corah, N. L. (1984). Behavioral factors influencing dental treatment. In Cohen, L. K., and Bryant, P. S. (eds.),Social Sciences and Dentistry: A Critical Bibliography, Quintessence, London, pp. 267?322.
4. Biro, P. A., and Hewson, N. D. (1976). A survey of patients' attitudes to their dentist.Austral. Dent. J. 21: 388?394.
5. Blandford, D. H., and Dane, J. K. (1981). Problems in dental practice: A pilot study for continuing education.J. Am. Dent. Assoc. 103: 869?874.