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.
Razaq A, Khan S, Hassan J, Malik BH, Razaq M.Razaq A, et al. Among authors: khan s.Cureus. 2019 Dec 17;11(12):e6401. doi: 10.7759/cureus.6401.Cureus. 2019.PMID: 31970031Free PMC article.Review.
Agarwal M, Khan S.Agarwal M, et al. Among authors: khan s.Cureus. 2020 Dec 10;12(12):e12008. doi: 10.7759/cureus.12008.Cureus. 2020.PMID: 33457117Free PMC article.Review.