Tuberculin skin test reaction among adults 25-74 years, United States, 1971-1972 /
Engel, Arnold.
Roberts, Jean,1918-
Hyattsville, Md. : U.S. Dept. of Health, Education, and Welfare, Public Health Service, Health Resources Administration, National Center for Health Statistics,
1977.
Includes bibliographical references.
Tuberculin test
Health surveys