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.
Kim S, Cai J, Couper D.Kim S, et al. Among authors: cai j.Stat Med. 2016 Jan 30;35(2):282-93. doi: 10.1002/sim.6623. Epub 2015 Aug 26.Stat Med. 2016.PMID: 26310388Free PMC article.
Schaubel DE, Cai J.Schaubel DE, et al. Among authors: cai j.Stat Med. 2004 Jun 30;23(12):1885-900. doi: 10.1002/sim.1777.Stat Med. 2004.PMID: 15195322Free article.
Greene WF, Cai J.Greene WF, et al. Among authors: cai j.Biometrics. 2004 Dec;60(4):987-96. doi: 10.1111/j.0006-341X.2004.00254.x.Biometrics. 2004.PMID: 15606419
Monaco J, Cai J, Grizzle J.Monaco J, et al. Among authors: cai j.Stat Med. 2005 Nov 30;24(22):3387-400. doi: 10.1002/sim.2205.Stat Med. 2005.PMID: 16237657
Zeng D, Schaubel DE, Cai J.Zeng D, et al. Among authors: cai j.Stat Biosci. 2011 Dec 1;3(2):187-207. doi: 10.1007/s12561-011-9043-4.Stat Biosci. 2011.PMID: 22505954Free PMC article.