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.
Ching CK, Lai CK, Poon WT, Lui MC, Lam YH, Shek CC, Mak TW, Chan AY.Ching CK, et al. Among authors: shek cc.Hong Kong Med J. 2006 Oct;12(5):334-8.Hong Kong Med J. 2006.PMID: 17028351Free article.
Chow CC, Lee S, Shek CC, Wing YK, Ahuja A, Cockram CS.Chow CC, et al. Among authors: shek cc.Aust N Z J Psychiatry. 1993 Jun;27(2):246-53. doi: 10.1080/00048679309075773.Aust N Z J Psychiatry. 1993.PMID: 8363533