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.
Wang Y, Lin L, Thompson CG, Chu H.Wang Y, et al. Among authors: chu h.Stat Med. 2022 Feb 10;41(3):500-516. doi: 10.1002/sim.9261. Epub 2021 Nov 18.Stat Med. 2022.PMID: 34796539Free PMC article.
Chen Y, Liu Y, Ning J, Nie L, Zhu H, Chu H.Chen Y, et al. Among authors: chu h.Stat Methods Med Res. 2017 Apr;26(2):914-930. doi: 10.1177/0962280214562146. Epub 2014 Dec 14.Stat Methods Med Res. 2017.PMID: 25512146Free PMC article.
Chen Y, Liu Y, Chu H, Ting Lee ML, Schmid CH.Chen Y, et al. Among authors: chu h.Stat Med. 2017 Jan 15;36(1):105-121. doi: 10.1002/sim.7093. Epub 2016 Aug 31.Stat Med. 2017.PMID: 27580758Free PMC article.