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

Filters

My NCBI Filters

Results by year

Table representation of search results timeline featuring number of search results per year.

Year Number of Results
1983 1
1984 1
1985 1
1986 2
1988 1
1989 1
1992 1
1993 2
1994 1
1995 5
1996 2
1997 8
1999 3
2000 2
2001 3
2002 1
2004 3
2006 2
2007 3
2008 2
2009 2
2011 2
2012 3
2013 5
2014 3
2015 4
2016 4
2017 1
2018 6
2019 2
2023 0

Text availability

Article attribute

Article type

Publication date

Similar articles for PMID: 29712679

72 results

Results by year

Filters applied: . Clear all
Page 1
Are gatekeepers necessary?
Brunner LK, McKnight MM. Brunner LK, et al. Best Pract Benchmarking Healthc. 1997 Mar-Apr;2(2):52-6. Best Pract Benchmarking Healthc. 1997. PMID: 9214866 Review.
Gatekeepers for pragmatic clinical trials.
Whicher DM, Miller JE, Dunham KM, Joffe S. Whicher DM, et al. Clin Trials. 2015 Oct;12(5):442-8. doi: 10.1177/1740774515597699. Epub 2015 Sep 15. Clin Trials. 2015. PMID: 26374683 Free PMC article.
72 results