- Nepal 11 studies
- Netherlands 2200 studies
- Netherlands Antilles 1 study
- New Zealand 453 studies
- Nicaragua 3 studies
- Niger 2 studies
- Nigeria 18 studies
- Northern Mariana Islands 1 study
- Norway 1010 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.