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
2003 3
2007 2
2009 4
2010 5
2011 4
2012 5
2013 5
2014 5
2015 6
2016 2
2017 4
2018 2
2019 2
2020 8
2021 8
2022 3
2023 6

Text availability

Article attribute

Article type

Publication date

Search Results

65 results

Results by year

Filters applied: . Clear all
Page 1
Glyphosate Use, Toxicity and Occurrence in Food.
Soares D, Silva L, Duarte S, Pena A, Pereira A. Soares D, et al. Among authors: pena a. Foods. 2021 Nov 12;10(11):2785. doi: 10.3390/foods10112785. Foods. 2021. PMID: 34829065 Free PMC article. Review.
Arsenic in Portuguese Rice: Is There Any Risk?
Silva A, Pereira A, Silva L, Pena A. Silva A, et al. Among authors: pena a. Foods. 2022 Jan 20;11(3):277. doi: 10.3390/foods11030277. Foods. 2022. PMID: 35159429 Free PMC article.
Human ochratoxin a biomarkers--from exposure to effect.
Duarte SC, Pena A, Lino CM. Duarte SC, et al. Among authors: pena a. Crit Rev Toxicol. 2011 Mar;41(3):187-212. doi: 10.3109/10408444.2010.529103. Crit Rev Toxicol. 2011. PMID: 21401326 Review.
65 results