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

348 results

Filters applied: . Clear all
Results are displayed in a computed author sort order. The Publication Date timeline is not available.
Page 1
European Society of ColoProctology: guideline for haemorrhoidal disease.
van Tol RR, Kleijnen J, Watson AJM, Jongen J, Altomare DF, Qvist N, Higuero T, Muris JWM, Breukink SO. van Tol RR, et al. Among authors: kleijnen j. Colorectal Dis. 2020 Jun;22(6):650-662. doi: 10.1111/codi.14975. Epub 2020 Feb 17. Colorectal Dis. 2020. PMID: 32067353
Evidence-informed recommendations to reduce dissemination bias in clinical research: conclusions from the OPEN (Overcome failure to Publish nEgative fiNdings) project based on an international consensus meeting.
Meerpohl JJ, Schell LK, Bassler D, Gallus S, Kleijnen J, Kulig M, La Vecchia C, Marušić A, Ravaud P, Reis A, Schmucker C, Strech D, Urrútia G, Wager E, Antes G; OPEN project consortium. Meerpohl JJ, et al. Among authors: kleijnen j. BMJ Open. 2015 May 5;5(5):e006666. doi: 10.1136/bmjopen-2014-006666. BMJ Open. 2015. PMID: 25943371 Free PMC article.
ROBIS: A new tool to assess risk of bias in systematic reviews was developed.
Whiting P, Savović J, Higgins JP, Caldwell DM, Reeves BC, Shea B, Davies P, Kleijnen J, Churchill R; ROBIS group. Whiting P, et al. Among authors: kleijnen j. J Clin Epidemiol. 2016 Jan;69:225-34. doi: 10.1016/j.jclinepi.2015.06.005. Epub 2015 Jun 16. J Clin Epidemiol. 2016. PMID: 26092286 Free PMC article.
348 results