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34995 Studies found for: standard AND United States

Terms and Synonyms Searched:

Terms Search Results* Entire Database**
standard 34,995 studies 83,128 studies
United States 34,994 studies 166,188 studies
U.S. 792 studies 3,954 studies
U S 1 studies 10 studies
States 34,856 studies 188,461 studies
stated 126 studies 1,443 studies
Territory 125 studies 1,573 studies
United 34,844 studies 182,311 studies

-- No studies found
* Number of studies in the search results containing the term or synonym
** Number of studies in the entire database containing the term or synonym