Author
United States. Agency for Healthcare Research and Quality
357
Centers for Disease Control and Prevention (U.S.)
292
Center for Drug Evaluation and Research (U.S.)
239
National Center for Health Statistics (U.S.)
236
SpringerLink (Online service)
228
Center for Biologics Evaluation and Research (U.S.)
214
United States. Department of Homeland Security. Office of Inspector General
171
United States. Agency for Toxic Substances and Disease Registry
146
Oxford Scholarship Online
142
United States. Department of Health and Human Services
130
National Cancer Institute (U.S.)
117
Ebooks Corporation
114
National Center for Complementary and Alternative Medicine (U.S.)
113
Centers for Medicare & Medicaid Services (U.S.)
102
National Institute of Diabetes and Digestive and Kidney Diseases (U.S.)
96
United States. Food and Drug Administration
92
National Institute for Occupational Safety and Health
90
United States. Bureau of Mines
79
Child Welfare Information Gateway (U.S.)
78
Center for Substance Abuse Treatment (U.S.)
77
ScienceDirect (Online service)
76
National Institute of Mental Health (U.S.)
67
International Conference on Harmonisation
63
Center for Food Safety and Applied Nutrition (U.S.)
57
Center for Mental Health Services (U.S.)
57
National Institutes of Health (U.S.)
56
ProQuest (Firm)
56
United States. Department of Housing and Urban Development. Office of Policy Development and Research
55
National Institute on Drug Abuse
54
United States. Federal Emergency Management Agency
54
National Diabetes Information Clearinghouse (U.S.)
50
National Digestive Diseases Information Clearinghouse (U.S.)
47
Colorado State University. Department of Agricultural and Resource Economics
46
Weight-control Information Network (U.S.)
46
National Institute on Aging
44
U.S. Citizenship and Immigration Services
44
United States. Children's Bureau
43
United States. Congressional Budget Office
43
Colorado State University. Extension
41
National Heart, Lung, and Blood Institute
41
National Institute on Alcohol Abuse and Alcoholism (U.S.)
40
National Kidney and Urologic Diseases Information Clearinghouse (U.S.)
40
United States. Food and Drug Administration. Office of Women's Health
38
Center for Substance Abuse Prevention (U.S.)
37
National Diabetes Education Program (U.S.)
36
United States. Agency for Health Care Policy and Research
33
Center for Devices and Radiological Health (U.S.)
32
United States. Public Health Service
32
United States. Department of Homeland Security
31
National Institutes of Health (U.S.). Office of Research on Women's Health
29
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