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.
Yu CH, Chang CH, Ko HC, Chen WC, Chang FM.Yu CH, et al. Among authors: ko hc.Ultrasound Med Biol. 2003 Jan;29(1):19-23. doi: 10.1016/s0301-5629(02)00695-6.Ultrasound Med Biol. 2003.PMID: 12604113
Chang CH, Yu CH, Chang FM, Ko HC, Chen HY.Chang CH, et al. Among authors: ko hc.Ultrasound Med Biol. 2002 Jul;28(7):859-63. doi: 10.1016/s0301-5629(02)00534-3.Ultrasound Med Biol. 2002.PMID: 12208326
Chang CH, Yu CH, Chang FM, Ko HC, Chen HY.Chang CH, et al. Among authors: ko hc.Ultrasound Med Biol. 2002 Nov-Dec;28(11-12):1383-7. doi: 10.1016/s0301-5629(02)00650-6.Ultrasound Med Biol. 2002.PMID: 12498932
Chang CH, Yu CH, Chang FM, Ko HC, Chen HY.Chang CH, et al. Among authors: ko hc.Ultrasound Med Biol. 2003 Mar;29(3):361-6. doi: 10.1016/s0301-5629(02)00732-9.Ultrasound Med Biol. 2003.PMID: 12706186
Chang CH, Yu CH, Ko HC, Chen WC, Chang FM.Chang CH, et al. Among authors: ko hc.Ultrasound Med Biol. 2003 Jul;29(7):929-33. doi: 10.1016/s0301-5629(03)00886-x.Ultrasound Med Biol. 2003.PMID: 12878237
Chang CH, Yu CH, Chang FM, Ko HC, Chen HY.Chang CH, et al. Among authors: ko hc.Ultrasound Med Biol. 2003 Jul;29(7):935-42. doi: 10.1016/s0301-5629(03)00902-5.Ultrasound Med Biol. 2003.PMID: 12878238
Chang CH, Yu CH, Ko HC, Chang FM, Chen HY.Chang CH, et al. Among authors: ko hc.Ultrasound Med Biol. 2003 Jul;29(7):943-9. doi: 10.1016/s0301-5629(03)00909-8.Ultrasound Med Biol. 2003.PMID: 12878239