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.
Lou HY, Huang XY.Lou HY, et al.J Int Med Res. 2010;38(6):2070-6. doi: 10.1177/147323001003800622.J Int Med Res. 2010.PMID: 21227012Free article.Clinical Trial.
Yao Y, Zhou H, Shen Y, Yang Q, Ye J, Fu Y, Lu G, Lou H, Yu Y, Zhou J.Yao Y, et al.Clin Respir J. 2018 Nov;12(11):2566-2572. doi: 10.1111/crj.12957. Epub 2018 Oct 21.Clin Respir J. 2018.PMID: 30191673
Pan X, Shen J, Ma Y, Lou H, Weng Y, Zhan R.Pan X, et al.Medicine (Baltimore). 2020 Nov 20;99(47):e23405. doi: 10.1097/MD.0000000000023405.Medicine (Baltimore). 2020.PMID: 33217885Free PMC article.