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.
Abraham A, Jose R, Ahmad J, Joshi J, Jacob T, Khalid AU, Ali H, Patel P, Singh J, Toma M.Abraham A, et al. Among authors: khalid au.J Imaging. 2023 Oct 9;9(10):215. doi: 10.3390/jimaging9100215.J Imaging. 2023.PMID: 37888322Free PMC article.
Ullah N, Khalid AUR, Ahmed S, Iqbal S, Khan MI, Rehman MU, Mehmood A, Hu B, Tian X.Ullah N, et al. Among authors: khalid aur.Opt Express. 2023 Apr 10;31(8):12789-12801. doi: 10.1364/OE.484137.Opt Express. 2023.PMID: 37157432Free article.
Zahid A, Aslam H, Zahid A, Ahmed I, Aslam S, Jahanzeb Z, Khalid AU.Zahid A, et al. Among authors: khalid au.Cureus. 2022 Dec 4;14(12):e32190. doi: 10.7759/cureus.32190. eCollection 2022 Dec.Cureus. 2022.PMID: 36620789Free PMC article.
Ullah N, Liu W, Wang G, Wang Z, Khalid AUR, Hu B, Liu J, Zhang Y.Ullah N, et al. Among authors: khalid aur.Opt Express. 2020 Feb 3;28(3):2789-2798. doi: 10.1364/OE.381765.Opt Express. 2020.PMID: 32121959Free article.
Pi D, Liu J, Han Y, Khalid AUR, Yu S.Pi D, et al. Among authors: khalid aur.Opt Express. 2019 Dec 23;27(26):37337-37348. doi: 10.1364/OE.27.037337.Opt Express. 2019.PMID: 31878516Free article.