by Susan Kahn Stern, Suzanne C. Morrissey, Jennifer E. Mauldin, Bureau of Economic Research and Statistics, American Dental AssociationDepartment of Health, Education, and Welfare, Health Care Financing Administration1978
by Susan Kahn Stern, Suzanne C. Morrissey, Jennifer E. Mauldin, Bureau of Economic Research and Statistics, American Dental AssociationDepartment of Health, Education, and Welfare, Health Care Financing Administration, Health Standards and Quality Bureau1978