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Author/Creator
- National Institutes of Health (U.S.)272
- National Center for Health Statistics (U.S.)193
- United States. Social Security Administration. Office of Policy137
- United States. Social Security Administration126
- National Cancer Institute (U.S.)125
- United States. Occupational Safety and Health Administration89
- United States. Health Care Financing Administration77
- United States. Food and Drug Administration65
- National Institute for Occupational Safety and Health64
- League of Nations62
- Centers for Disease Control (U.S.)55
- United States51
- United States. Public Health Service51
- United States. Office of Education43
- Health Organisation42
- National Cancer Institute (U.S.). Office of Cancer Communications42
- National Institute on Drug Abuse36
- National Institute of Mental Health (U.S.)30
- American Institutes for Research24
- Center for Disease Control22