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.
Lee TL, Leung WK, Lau JY, Tong JH, Ng EK, Chan FK, Chung SC, Sung JJ, To KF.Lee TL, et al. Among authors: to kf.Cancer Lett. 2001 Jul 26;168(2):133-40. doi: 10.1016/s0304-3835(01)00527-4.Cancer Lett. 2001.PMID: 11403917
Chan FK, Sung JJ, Chung SC, To KF, Yung MY, Leung VK, Lee YT, Chan CS, Li EK, Woo J.Chan FK, et al. Among authors: to kf.Lancet. 1997 Oct 4;350(9083):975-9. doi: 10.1016/s0140-6736(97)04523-6.Lancet. 1997.PMID: 9329511Clinical Trial.
Ng EK, Lam YH, Sung JJ, Yung MY, To KF, Chan AC, Lee DW, Law BK, Lau JY, Ling TK, Lau WY, Chung SC.Ng EK, et al. Among authors: to kf.Ann Surg. 2000 Feb;231(2):153-8. doi: 10.1097/00000658-200002000-00001.Ann Surg. 2000.PMID: 10674604Free PMC article.Clinical Trial.
Sung JJ, Lin SR, Ching JY, Zhou LY, To KF, Wang RT, Leung WK, Ng EK, Lau JY, Lee YT, Yeung CK, Chao W, Chung SC.Sung JJ, et al. Among authors: to kf.Gastroenterology. 2000 Jul;119(1):7-14. doi: 10.1053/gast.2000.8550.Gastroenterology. 2000.PMID: 10889149Clinical Trial.