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.
Lai BP, Tang AK, Lee DT, Yip AS, Chung TK.Lai BP, et al. Among authors: chung tk.Psychiatry Res. 2010 Dec 30;180(2-3):80-5. doi: 10.1016/j.psychres.2009.07.015. Epub 2010 May 21.Psychiatry Res. 2010.PMID: 20493548
Lee DT, Ngai IS, Ng MM, Lok IH, Yip AS, Chung TK.Lee DT, et al. Among authors: chung tk.Midwifery. 2009 Apr;25(2):104-13. doi: 10.1016/j.midw.2007.01.008. Epub 2007 Apr 3.Midwifery. 2009.PMID: 17408821