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IMPORTANT: Listing of a study on this site does not reflect endorsement by the National Institutes of Health. Talk with a trusted healthcare professional before volunteering for a study. Read more...
IMPORTANT: Talk with a trusted healthcare professional before volunteering for a study. Read more...
A service of the U.S. National Institutes of Health
The number of participants in a clinical study. The "estimated enrollment" is the number of participants that the researchers need for the study.
(See also Enrollment data element on ClinicalTrials.gov.)