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

Results by year

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

Year Number of Results
1989 3
1993 1
1994 1
1996 1
2008 3
2009 1
2010 1
2011 5
2012 2
2013 1
2014 2
2015 5
2016 3
2017 2
2018 4
2019 4
2020 3
2021 4
2022 2
2023 3
2024 3

Text availability

Article attribute

Article type

Publication date

Search Results

51 results

Results by year

Filters applied: . Clear all
Page 1
Testing the effectiveness of community-engaged citizen science to promote physical activity, foster healthier neighborhood environments, and advance health equity in vulnerable communities: The Steps for Change randomized controlled trial design and methods.
King AC, Campero MI, Garcia D, Blanco-Velazquez I, Banchoff A, Fierros F, Escobar M, Cortes AL, Sheats JL, Hua J, Chazaro A, Done M, Espinosa PR, Vuong D, Ahn DK. King AC, et al. Among authors: cortes al. Contemp Clin Trials. 2021 Sep;108:106526. doi: 10.1016/j.cct.2021.106526. Epub 2021 Aug 8. Contemp Clin Trials. 2021. PMID: 34371162 Free PMC article. Clinical Trial.
51 results