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.
Llena C, Nakdali T, Sanz JL, Forner L.Llena C, et al. Among authors: sanz jl.Int J Environ Res Public Health. 2019 Dec 11;16(24):5049. doi: 10.3390/ijerph16245049.Int J Environ Res Public Health. 2019.PMID: 31835830Free PMC article.
Llena C, Calabuig E, Sanz JL, Melo M.Llena C, et al. Among authors: sanz jl.Int J Environ Res Public Health. 2020 Feb 22;17(4):1421. doi: 10.3390/ijerph17041421.Int J Environ Res Public Health. 2020.PMID: 32098396Free PMC article.