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.
Liu HL, Chen WS, Chen JS, Shih TC, Chen YY, Lin WL.Liu HL, et al.Ultrasound Med Biol. 2006 May;32(5):759-67. doi: 10.1016/j.ultrasmedbio.2006.01.010.Ultrasound Med Biol. 2006.PMID: 16677935
Tung YS, Liu HL, Wu CC, Ju KC, Chen WS, Lin WL.Tung YS, et al. Among authors: liu hl.Ultrasound Med Biol. 2006 Jul;32(7):1103-10. doi: 10.1016/j.ultrasmedbio.2006.04.005.Ultrasound Med Biol. 2006.PMID: 16829324
Liu HL, Chen YY, Chen WS, Shih TC, Chen JS, Lin WL.Liu HL, et al.Ultrasound Med Biol. 2006 Sep;32(9):1411-21. doi: 10.1016/j.ultrasmedbio.2006.05.008.Ultrasound Med Biol. 2006.PMID: 16965981
Liu HL, Wai YY, Chen WS, Chen JC, Hsu PH, Wu XY, Huang WC, Yen TC, Wang JJ.Liu HL, et al.Ultrasound Med Biol. 2008 Apr;34(4):598-606. doi: 10.1016/j.ultrasmedbio.2008.01.011. Epub 2008 Mar 3.Ultrasound Med Biol. 2008.PMID: 18313204
Chen WS, Shen CC, Wang JC, Ko CT, Liu HL, Ho MC, Chen CN, Yeh CK.Chen WS, et al. Among authors: liu hl.IEEE Trans Ultrason Ferroelectr Freq Control. 2011 Apr;58(4):766-75. doi: 10.1109/TUFFC.2011.1869.IEEE Trans Ultrason Ferroelectr Freq Control. 2011.PMID: 21507754