Research Support, U.S. Gov't, Non-P.H.S.Research Support, U.S. Gov't, P.H.S.Research Support, Non-U.S. Gov'tResearch Support, U.S. GovernmentResearch Support, American Recovery and Reinvestment ActResearch Support, N.I.H., ExtramuralResearch Support, N.I.H., IntramuralResearch Support as TopicResearchUnited StatesResearch PersonnelResearch DesignEthics, ResearchNursing ResearchTranslational Medical ResearchHealth Services ResearchGenetic ResearchClinical Trials as Topic