1. Children and, dental care: charges and probability of a visit by individual characteristics;Lawson;JADA,1980
2. National medical care expenditure survey: household survey instruments;Bonham,1981
3. National medical care expenditure survey: estimation and sampling variances in the household survey;Cohen,1981
4. Dental fees charged by general practitioners and selected specialists in the United States, 1977;Bureau of Economic Research and Statistics;JADA,1978
5. National health care expenditures study, data preview 8: dental services: use, expenditures, and sources of payment;Rossiter,1982