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.
Ho SY, Wang MP, Lo WS, Mak KK, Lai HK, Thomas GN, Lam TH.Ho SY, et al. Among authors: lam th.Tob Control. 2010 Apr;19(2):129-33. doi: 10.1136/tc.2009.032003.Tob Control. 2010.PMID: 20378586
Wang MP, Thomas GN, Ho SY, Lai HK, Mak KH, Lam TH.Wang MP, et al. Among authors: lam th.Ann Epidemiol. 2011 Mar;21(3):164-9. doi: 10.1016/j.annepidem.2010.10.010. Epub 2010 Dec 15.Ann Epidemiol. 2011.PMID: 21109449
Wang MP, Ho SY, Lo WS, Lam TH.Wang MP, et al. Among authors: lam th.J Adolesc Health. 2011 Apr;48(4):418-20. doi: 10.1016/j.jadohealth.2010.07.017. Epub 2010 Oct 8.J Adolesc Health. 2011.PMID: 21402274Free article.