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.
Chen J, Veras MM, Liu C, Lin J.Chen J, et al. Among authors: liu c.Cochrane Database Syst Rev. 2013 Feb 28;(2):CD004524. doi: 10.1002/14651858.CD004524.pub4.Cochrane Database Syst Rev. 2013.PMID: 23450553Review.
Chen J, Lin S, Liu C.Chen J, et al. Among authors: liu c.Cochrane Database Syst Rev. 2014 Nov 27;(11):CD004800. doi: 10.1002/14651858.CD004800.pub3.Cochrane Database Syst Rev. 2014.PMID: 25427435Review.
Liu C, Chen J, Gao Y, Deng B, Liu K.Liu C, et al. Among authors: liu k.Cochrane Database Syst Rev. 2021 Mar 26;3(3):CD004434. doi: 10.1002/14651858.CD004434.pub6.Cochrane Database Syst Rev. 2021.PMID: 33765691Free PMC article.
Liu C, Chen J, Liu K.Liu C, et al. Among authors: liu k.Int Heart J. 2005 Jan;46(1):113-22. doi: 10.1536/ihj.46.113.Int Heart J. 2005.PMID: 15858943Free article.
Liu C, Chen J, Gao Y, Deng B, Liu K.Liu C, et al. Among authors: liu k.Cochrane Database Syst Rev. 2009 Jul 8;(3):CD004434. doi: 10.1002/14651858.CD004434.pub4.Cochrane Database Syst Rev. 2009.PMID: 19588356Updated.Review.
Liu C, Chen J, Gao Y, Deng B, Liu K.Liu C, et al. Among authors: liu k.Cochrane Database Syst Rev. 2013 Feb 28;2013(2):CD004434. doi: 10.1002/14651858.CD004434.pub5.Cochrane Database Syst Rev. 2013.PMID: 23450552Free PMC article.Updated.Review.
Wang B, He KH, Jiang MB, Liu C, Min S.Wang B, et al. Among authors: liu c.Middle East J Anaesthesiol. 2011 Oct;21(3):397-402.Middle East J Anaesthesiol. 2011.PMID: 22428495Review.
Li X, Liu C, Mao Z, Li Q, Zhou F.Li X, et al. Among authors: liu c.Crit Care. 2021 Jan 6;25(1):15. doi: 10.1186/s13054-020-03451-y.Crit Care. 2021.PMID: 33407756Free PMC article.
Liu C, Liu K, Ji Z, Liu G.Liu C, et al. Among authors: liu k, liu g.Respir Med. 2006 May;100(5):765-74. doi: 10.1016/j.rmed.2006.01.021. Epub 2006 Mar 23.Respir Med. 2006.PMID: 16549344Free article.Review.