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.
Cho WC.Cho WC.Technol Cancer Res Treat. 2008 Aug;7(4):269-77. doi: 10.1177/153303460800700401.Technol Cancer Res Treat. 2008.PMID: 18642965Free article.
Cho WC.Cho WC.Zhongguo Fei Ai Za Zhi. 2010 Mar;13(3):190-4. doi: 10.3779/j.issn.1009-3419.2010.03.01.Zhongguo Fei Ai Za Zhi. 2010.PMID: 20673514Free PMC article.Review.
CHO WC.CHO WC.Zhongguo Fei Ai Za Zhi. 2010 Dec;13(12):C58-60. doi: 10.3779/j.issn.1009-3419.2010.12.17.Zhongguo Fei Ai Za Zhi. 2010.PMID: 21159239Free PMC article.Review.Chinese.