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

Search Page

Filters

My Custom Filters

Publication date

Text availability

Article attribute

Article type

Additional filters

Article Language

Species

Sex

Age

Other

Search Results

458 results

Filters applied: . Clear all
Results are displayed in a computed author sort order. The Publication Date timeline is not available.
Page 1
What are pragmatic trials?
Roland M, Torgerson DJ. Roland M, et al. Among authors: torgerson dj. BMJ. 1998 Jan 24;316(7127):285. doi: 10.1136/bmj.316.7127.285. BMJ. 1998. PMID: 9472515 Free PMC article. Review. No abstract available.
What is Zelen's design?
Torgerson DJ, Roland M. Torgerson DJ, et al. BMJ. 1998 Feb 21;316(7131):606. doi: 10.1136/bmj.316.7131.606. BMJ. 1998. PMID: 9518917 Free PMC article. Review. No abstract available.
Randomisation methods in controlled trials.
Roberts C, Torgerson D. Roberts C, et al. BMJ. 1998 Nov 7;317(7168):1301. doi: 10.1136/bmj.317.7168.1301. BMJ. 1998. PMID: 9804722 Free PMC article. Review. No abstract available.
Economic note: cost of illness studies.
Byford S, Torgerson DJ, Raftery J. Byford S, et al. Among authors: torgerson dj. BMJ. 2000 May 13;320(7245):1335. doi: 10.1136/bmj.320.7245.1335. BMJ. 2000. PMID: 10807635 Free PMC article. Review. No abstract available.
458 results