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
2008 1
2011 1
2012 2
2013 2
2014 2
2015 4
2016 2
2017 4
2018 2
2019 2
2020 4
2021 5
2022 3
2023 3

Text availability

Article attribute

Article type

Publication date

Search Results

31 results

Results by year

Filters applied: . Clear all
Page 1
Comparative effectiveness of various physical exercise interventions on executive functions and related symptoms in children and adolescents with attention deficit hyperactivity disorder: A systematic review and network meta-analysis.
Zhu F, Zhu X, Bi X, Kuang D, Liu B, Zhou J, Yang Y, Ren Y. Zhu F, et al. Among authors: bi x. Front Public Health. 2023 Mar 24;11:1133727. doi: 10.3389/fpubh.2023.1133727. eCollection 2023. Front Public Health. 2023. PMID: 37033046 Free PMC article.
Intake of low and no-calorie sweeteners (LNCS) by the Brazilian population.
Barraj L, Scrafford C, Bi X, Tran N. Barraj L, et al. Among authors: bi x. Food Addit Contam Part A Chem Anal Control Expo Risk Assess. 2021 Feb;38(2):181-194. doi: 10.1080/19440049.2020.1846083. Epub 2020 Dec 18. Food Addit Contam Part A Chem Anal Control Expo Risk Assess. 2021. PMID: 33337974
31 results