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.


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

My NCBI Filters
Text availability
Article attribute
Article type
Publication date

Search Results

1,750 results
Filters applied: . Clear all Results are displayed in a computed author sort order. Results by year timeline is unavailable
Page 1
Data dredging, bias, or confounding.
Smith GD, Ebrahim S. Smith GD, et al. BMJ. 2002 Dec 21;325(7378):1437-8. doi: 10.1136/bmj.325.7378.1437. BMJ. 2002. PMID: 12493654 Free PMC article. No abstract available.
Test meta-analyses for stability.
Naylor CD, Smith GD. Naylor CD, et al. Among authors: smith gd. BMJ. 1998 Jul 18;317(7152):206-7. doi: 10.1136/bmj.317.7152.206b. BMJ. 1998. PMID: 9665917 Free PMC article. No abstract available.
Bias in location and selection of studies.
Egger M, Smith GD. Egger M, et al. Among authors: smith gd. BMJ. 1998 Jan 3;316(7124):61-6. doi: 10.1136/bmj.316.7124.61. BMJ. 1998. PMID: 9451274 Free PMC article. Review. No abstract available.
1,750 results