Vital and health statistics: Series 10, Data from National Health Survey. 15. Acute conditions, Incidence and associated disability, United States, July 1963-June 1964, statistics on incidence of acute conditions and associated days of restricted activity, bed disability, and time lost from work and school, by age, sex, calendar quarter, residence, and geographic region, based on data collected in household Interviews during period July 1963-June 1964; [by Charles S. Wilder].