A clinical trial is a particular type of clinical research that compares one treatment with another.
An NHS OpenAthens username and password is required to access those databases marked with an asterisk(*).
The Cochrane Library is a set of databases of high quality evidence on the effects of healthcare interventions and treatments. The Central Register of Controlled Trials (CENTRAL) database is a searchable register of controlled trials.
If you need help using any of these resources please contact your local library.