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.
al-Wabel AH, Teklu B, Mahfouz AA, al-Ghamdi AS, el-Amin OB, Khan AS.al-Wabel AH, et al.East Afr Med J. 1997 Feb;74(2):62-4.East Afr Med J. 1997.PMID: 9185385
Alghamdi AS.Alghamdi AS.Int J Environ Res Public Health. 2022 Feb 22;19(5):2506. doi: 10.3390/ijerph19052506.Int J Environ Res Public Health. 2022.PMID: 35270199Free PMC article.