Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 2009 Jul-Sep;18(3):191-4.

What is a randomised controlled trial?

Affiliations
  • PMID: 20034195

What is a randomised controlled trial?

Andrea Cipriani et al. Epidemiol Psichiatr Soc. 2009 Jul-Sep.
No abstract available

PubMed Disclaimer

MeSH terms