OneSearch Searches many of Edgewood's databases, but is not comprehensive, nor does it use the full features of MeSH (or Psych) system.
COMPLETE key word searching of CINAHL, Health Policy RefCtr, MEDLINE, PsycINFO, Business Cmpl., SocINDEX, Academic Cmpl. & Cochrane Rev. Abs.
PARTIAL searching of JSTOR.
MINIMAL access to content in ProQuest Dissertations or LexisNexis.
If you are more familiar with the PubMed interface, consider searching it separately.
From the Advanced Search page you can limit results to Nursing, Health & Medicine, Business & Mgt, Psychology, Public Health, etc.