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2. The dental patient at the University of Minnesota: A characterization
3. 3. S. E. Dworkin, Factors contributing to patient attrition at a university dental center . Paper presented at the Meeting of the International Association of Dental Research, New York City, 1970 .
4. 4. Anthony Picozzi, Comparing methods for surveying patient attitudes using dental students . Paper presented at the Meeting of the International Association of Dental Research, New York City, 1970 .