GAO's review of USDA's National WIC Evaluation report and follow-up issues microform : statement of Keith O. Fultz, Director of Planning and Reporting, Resources, Community, and Economic Development Division, before the House Select Committee on Hunger; the Senate Committee on Agriculture, Nutrition, and Forestry; and the Subcommittee on Nutrition, and Investigations, Senate Committee on Agriculture, Nutrition, and Forestry / United States General Accounting Office