- Cambodia 12 studies
- Cameroon 17 studies
- Canada 5394 studies
- Canada, Alberta 1582 studies
- Canada, British Columbia 1553 studies
- Canada, Manitoba 738 studies
- Canada, New Brunswick 340 studies
- Canada, Newfoundland and Labrador 424 studies
- Canada, Nova Scotia 847 studies
- Canada, Ontario 3581 studies
- Canada, Prince Edward Island 99 studies
- Canada, Quebec 2114 studies
- Canada, Saskatchewan 626 studies
- Central African Republic 4 studies
- Chile 415 studies
- China 975 studies
- Colombia 249 studies
- Congo 9 studies
- Congo, The Democratic Republic of the 3 studies
- Costa Rica 99 studies
- Croatia 246 studies
- Cuba 4 studies
- Cyprus 15 studies
- Czech Republic 945 studies
- Côte D'Ivoire 6 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.
