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.
Chuang KJ, Chan CC, Su TC, Lin LY, Lee CT.Chuang KJ, et al. Among authors: chan cc.J Occup Environ Med. 2007 Jun;49(6):610-7. doi: 10.1097/JOM.0b013e318058205b.J Occup Environ Med. 2007.PMID: 17563603Clinical Trial.
Huang SL, Cheng WL, Lee CT, Huang HC, Chan CC.Huang SL, et al. Among authors: chan cc.J Toxicol Environ Health A. 2002 Sep 13;65(17):1261-72. doi: 10.1080/152873902760125741.J Toxicol Environ Health A. 2002.PMID: 12167209
Lei YC, Chan CC, Wang PY, Lee CT, Cheng TJ.Lei YC, et al. Among authors: chan cc.Environ Res. 2004 May;95(1):71-6. doi: 10.1016/S0013-9351(03)00136-1.Environ Res. 2004.PMID: 15068932