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.
Lau WY, Leung KL, Lee TW, Li AK.Lau WY, et al. Among authors: leung kl.Br J Surg. 1993 Apr;80(4):493-4. doi: 10.1002/bjs.1800800430.Br J Surg. 1993.PMID: 8388306
Lee FY, Leung KL, Lai BS, Ng SS, Dexter S, Lau WY.Lee FY, et al. Among authors: leung kl.Arch Surg. 2001 Jan;136(1):90-4. doi: 10.1001/archsurg.136.1.90.Arch Surg. 2001.PMID: 11146785