Plan and operation of the Health and Nutrition Examination Survey, United States, 1971-1973 [electronic resource] : a description of a national health and nutrition examination survey of a probability sample of the U.S. population 1-74 years of age.
Imprint
Hyattsville, Md. : U.S. Dept. of Health, Education, and Welfare, Public Health Service, Office of Health Research, Statistics, and Technology, National Center for Health Statistics, [1973]
