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.
Chan KC, Lin ZY, Chen TH, Huang YC, Wang MJ, Tsai SK.Chan KC, et al. Among authors: chen th.Acta Anaesthesiol Sin. 2002 Jun;40(2):81-4.Acta Anaesthesiol Sin. 2002.PMID: 12194395
Hsin CH, Chen TH, Young YH, Liu WS.Hsin CH, et al. Among authors: chen th.Otolaryngol Head Neck Surg. 2010 Nov;143(5):662-8. doi: 10.1016/j.otohns.2010.07.012.Otolaryngol Head Neck Surg. 2010.PMID: 20974336