Database of National Institutes of Health Clinical Center studies. Registry of publicly supported clinical studies conducted mostly in Bethesda, MD.
This resource seems to be aimed at recruiting people to trials.
The search can be launched here.
Default operator OR
Boolean operators Unclear
Phrase searching No
Nesting No
Truncation No
Field tags It is possible to limit searches by trial status, gender, age and institute.
Hyphens Hyphenated and unhyphenated terms seem to be necessary
Help pages Yes
Example pain painful pained pains
Saved searches No
Export tagged No
Updated 16 April 2023