= Multiple sources| U.S. Census Bureau Health Insurance Data
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| U.S. Census Bureau HIV/AIDS Surveillance Database
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 | uCentral - Unbound Medicine
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| uCentral | | |||
| Ulrichsweb (Ulrichs Ulrich's web Legacy Platform)
Ulrich's Global Serials Directory | |||
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| UniProt/Swiss-Prot
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| UniSTS - Electronic PCR
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| UpToDate (Up to Date)
Comprehensive, current, succinct evidence-based resource covering multiple medical specialties. | |||
| UpToDate | | |||
| UpToDate with CME (Up to Date)
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| UpToDate | | |||
| USC Experts Directory
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| USC Faculty and Staff Directory
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| USC Scholars Portal
The USC Scholars Portal enables users to simultaneously cross-search multiple resources | |||
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| USPTO Issued Patents
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| 1976-present | | |||
