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565 Studies found for: standard AND United States | ( Map: Japan )

Terms and Synonyms Searched:

Terms Search Results* Entire Database**
Synonyms
standard 565 studies 75,254 studies
United States 565 studies 156,177 studies
U.S. 9 studies 3,763 studies
U S -- 9 studies
States 562 studies 175,444 studies
Territory 37 studies 1,379 studies
stated -- 1,223 studies
United 562 studies 171,122 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