• Uganda   81 studies
• Ukraine   353 studies
• United Arab Emirates   18 studies
• United Kingdom   3221 studies
• United States   36353 studies
• United States, Alabama   3380 studies
• United States, Alaska   218 studies
• United States, Arizona   3380 studies
• United States, Arkansas   1821 studies
• United States, California   10227 studies
• United States, Colorado   3490 studies
• United States, Connecticut   2593 studies
• United States, Delaware   860 studies
• United States, District of Columbia   2320 studies
• United States, Florida   6691 studies
• United States, Georgia   4277 studies
• United States, Hawaii   850 studies
• United States, Idaho   790 studies
• United States, Illinois   6065 studies
• United States, Indiana   3545 studies
• United States, Iowa   1980 studies
• United States, Kansas   2192 studies
• United States, Kentucky   2344 studies
• United States, Louisiana   2695 studies
• United States, Maine   755 studies
• United States, Maryland   7136 studies
• United States, Massachusetts   5866 studies
• United States, Michigan   4557 studies
• United States, Minnesota   3824 studies
• United States, Mississippi   1171 studies
• United States, Missouri   4383 studies
• United States, Montana   946 studies
• United States, Nebraska   2062 studies
• United States, Nevada   1486 studies
• United States, New Hampshire   894 studies
• United States, New Jersey   3904 studies
• United States, New Mexico   1264 studies
• United States, New York   8981 studies
• United States, North Carolina   5798 studies
• United States, North Dakota   881 studies
• United States, Ohio   6318 studies
• United States, Oklahoma   2257 studies
• United States, Oregon   2845 studies
• United States, Pennsylvania   7023 studies
• United States, Rhode Island   1432 studies
• United States, South Carolina   3103 studies
• United States, South Dakota   724 studies
• United States, Tennessee   4086 studies
• United States, Texas   8657 studies
• United States, Utah   2006 studies
• United States, Vermont   930 studies
• United States, Virginia   3531 studies
• United States, Washington   4154 studies
• United States, West Virginia   822 studies
• United States, Wisconsin   2864 studies
• United States, Wyoming   207 studies
• Uruguay   24 studies
  

Clinical Trials Authorship and Review

Clinical Trials content is provided directly by the U.S. National Institutes of Health via ClinicalTrials.gov and is not reviewed separately by ClinicalTrialsFeeds.org. Every page of specific clinical trials information contains a unique identifier which can be used to find further details directly from the National Institutes of Health.