Prevalence of selected impairments, United States, 1971 /
Wilder, Charles S.
Rockville, Md. : National Center for Health Statistics,
1975.
"Statistics on the prevalence of impairments involving vision, hearing, speech, paralysis, absence of extremities, and orthopedic defects by type, site, and etiology ... Based on data collected in the Health Interview Survey during 1971."
People with disabilities