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.
Xu XD, Wei H, Zhang XZ, Cheng SX, Zhuo RX.Xu XD, et al.J Biomed Mater Res A. 2007 May;81(2):418-26. doi: 10.1002/jbm.a.31063.J Biomed Mater Res A. 2007.PMID: 17117471
Wang ZC, Xu XD, Chen CS, Wang GR, Wang B, Zhang XZ, Zhuo RX.Wang ZC, et al. Among authors: xu xd.Colloids Surf B Biointerfaces. 2008 Dec 1;67(2):245-52. doi: 10.1016/j.colsurfb.2008.09.002. Epub 2008 Sep 11.Colloids Surf B Biointerfaces. 2008.PMID: 18929467