This guide will help you locate and use physician assistant information resources from the School of Medicine Library, the USC University Libraries, and beyond.
A registry and results database of federally and privately supported clinical trials conducted in the U.S. and around the world. Gives information about a trial's purpose, who may participate, locations, and phone numbers.
The global source for clinical trials information: offering news, analysis, study grants, career opportunities, and trial listings to professionals and patients.
A numeric system for the unique identification of randomised controlled trials worldwide. The ISRCTN Register also accepts registration of other forms of studies designed to assess the efficacy of health-care interventions.
Allows users to search for information on clinical trials in European Union (EU) member states and the European Economic Area (EEA) and clinical trials which are conducted outside the EU/EEA if they form part of a paediatric investigation plan (PIP).
An international database of prospectively registered systematic reviews in health and social care. Hosted by the UK's National Institute for Health Research.
This Clinical Trials Search Portal provides access to a central database containing the trial registration data sets provided by various international registries. Hosted by the World Health Organization.
Implementing a National Cancer Clinical Trials System for the 21st Century by 
Success Probability Estimation with Applications to Clinical Trials by 
