Premier biomedical research database. If you need research prior to 1996, you can change the range of years searched once you are in the Ovid Medline database.
These databases are excellent resources, especially when you are beginning your research.
Premier psychological/behavioral sciences research database. If you need research prior to 1967, you can change the range of years once you are in the Ovid PsycINFO database.
This multi-disciplinary database offers full text for nearly 2,000 scholarly journals, including more than 1,500 peer-reviewed titles. Covering virtually every area of academic study, it offers full-text information dating as far back as 1985.
Archival only, no current updates. The Program on Breast Cancer and Environmental Risk Factors (BCERF) at Cornell University is devoted to lowering the risk and incidence of cancer by promoting methods of sound decision-making at personal and public levels.
"Clinicaltrials.gov is a registry and results database of publicly and privately supported clinical studies of human participants conducted around the world." Consider checking it to find the most current research that is ongoing and not yet reported in the literature.
Scopus
This link opens in a new windowThis database comes courtesy of the TMC Library. Its value is that it allows you to search your highly relevant articles and see who has cited them. Search the other suggested databases first. Use this as a final check.