Author
National Institute for Occupational Safety and Health
818 results
National Center for Health Statistics (U.S.)
449 results
National Institutes of Health (U.S.)
339 results
Centers for Disease Control and Prevention (U.S.)
331 results
National Cancer Institute (U.S.)
331 results
Center for Biologics Evaluation and Research (U.S.)
297 results
Center for Drug Evaluation and Research (U.S.)
276 results
United States. Department of Health and Human Services
271 results
National Toxicology Program (U.S.)
223 results
International Cancer Research Data Bank
215 results
National Library of Medicine (U.S.)
204 results
United States. Agency for Healthcare Research and Quality
173 results
United States. Food and Drug Administration
170 results
National Institute on Drug Abuse
160 results
United States. Agency for Toxic Substances and Disease Registry
158 results
Center for Substance Abuse Treatment (U.S.)
141 results
Centers for Disease Control (U.S.)
135 results
National Institute of Diabetes and Digestive and Kidney Diseases (U.S.)
119 results
National Institute of Mental Health (U.S.)
118 results
United States. Agency for Health Care Policy and Research
117 results
National Institute on Alcohol Abuse and Alcoholism (U.S.)
110 results
Center for Devices and Radiological Health (U.S.)
106 results
United States. Administration on Aging
102 results
National Institute on Aging
95 results
National Center for Health Services Research and Health Care Technology Assessment (U.S.)
93 results
United States. Public Health Service
93 results
National Heart, Lung, and Blood Institute
90 results
Center for Mental Health Services (U.S.)
83 results
Kenton, Charlotte
82 results
United States. Agency for Toxic Substances and Disease Registry. Division of Toxicology
81 results
United States. Substance Abuse and Mental Health Services Administration. Office of Applied Studies
80 results
Child Welfare Information Gateway (U.S.)
78 results
Pittsburgh Research Laboratory (National Institute for Occupational Safety and Health)
77 results
International Conference on Harmonisation
72 results
National Digestive Diseases Information Clearinghouse (U.S.)
71 results
United States. Health Resources and Services Administration
71 results
United States. Children's Bureau
70 results
National Center for Complementary and Alternative Medicine (U.S.)
69 results
National Library of Medicine (U.S.). Reference Section
69 results
Center for Veterinary Medicine (U.S.)
67 results
Center for Substance Abuse Prevention (U.S.)
64 results
Centers for Medicare & Medicaid Services (U.S.)
58 results
National Center for Health Services Research
56 results
United States. Substance Abuse and Mental Health Services Administration
56 results
United States. Head Start Bureau
55 results
United States. Health Resources Administration. Bureau of Health Professions
55 results
National Kidney and Urologic Diseases Information Clearinghouse (U.S.)
54 results
Center for Health Policy Research (American Medical Association)
52 results
American Medical Association. Division of Computer and Information Services
50 results
American Medical Association. Survey & Data Resources
50 results
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