An official website of the United States government
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.
Hoffmann O, Ljungberg T.Hoffmann O, et al. Among authors: ljungberg t.Lakartidningen. 2021 Apr 27;118:20049.Lakartidningen. 2021.PMID: 33913123Free article.Swedish.
Ljungberg T, Bondza E, Lethin C.Ljungberg T, et al.Int J Environ Res Public Health. 2020 Mar 2;17(5):1616. doi: 10.3390/ijerph17051616.Int J Environ Res Public Health. 2020.PMID: 32131552Free PMC article.
Hoffmann O, Frisell F, Ljungberg T.Hoffmann O, et al. Among authors: ljungberg t.Lakartidningen. 2014 Jan 29-Feb 4;111(5):147-9.Lakartidningen. 2014.PMID: 24624763Swedish.No abstract available.