| http://www.w3.org/ns/prov#value | - In addition, there are thousands more Chinese nationals working as postdoctoral fellows and research technicians in the U.S. The demand for Chinese researchers is so great for the U.S. economy that in 2004, after significant pressure from Chinese students and American universities including Yale, the U.S. government significantly relaxed visa restrictions placed on Chinese nationals after Sept. 11
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