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.
Zheng XY, Liu L, Yang DG.Zheng XY, et al.Int J Cardiol. 2009 Mar 20;133(1):3-7. doi: 10.1016/j.ijcard.2008.10.027. Epub 2008 Nov 29.Int J Cardiol. 2009.PMID: 19042042Review.
Zhang Q, Liu L, Zheng XY.Zhang Q, et al. Among authors: zheng xy.Int J Cardiol. 2009 Apr 17;133(3):286-92. doi: 10.1016/j.ijcard.2008.11.034. Epub 2008 Dec 7.Int J Cardiol. 2009.PMID: 19068270Review.
Yang DG, Liu L, Zheng XY.Yang DG, et al. Among authors: zheng xy.Ageing Res Rev. 2008 Apr;7(2):137-46. doi: 10.1016/j.arr.2008.02.001. Epub 2008 Feb 12.Ageing Res Rev. 2008.PMID: 18343732Review.