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.
Tung YS, Liu HL, Wu CC, Ju KC, Chen WS, Lin WL.Tung YS, et al. Among authors: chen ws.Ultrasound Med Biol. 2006 Jul;32(7):1103-10. doi: 10.1016/j.ultrasmedbio.2006.04.005.Ultrasound Med Biol. 2006.PMID: 16829324
Wu CC, Chen CN, Ho MC, Chen WS, Lee PH.Wu CC, et al. Among authors: chen ws, chen cn.Ultrasound Med Biol. 2008 Jan;34(1):137-46. doi: 10.1016/j.ultrasmedbio.2007.07.001. Epub 2007 Aug 27.Ultrasound Med Biol. 2008.PMID: 17720300