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.
Liang CZ, Zhang XJ, Hao ZY, Yang S, Wang DB, Shi HQ, Liu C.Liang CZ, et al.BJU Int. 2004 Sep;94(4):568-70. doi: 10.1111/j.1464-410X.2004.05002.x.BJU Int. 2004.PMID: 15329114
Wu LX, Liang CZ, Hao ZY, Guo QK, Liu C, Tang ZG.Wu LX, et al. Among authors: liang cz.Zhonghua Nan Ke Xue. 2006 Jul;12(7):583-6.Zhonghua Nan Ke Xue. 2006.PMID: 16894930Chinese.
Zhou ZX, Liang CZ, Tang ZG, Hao ZY, Guo QK, Hu Y, Zhao J.Zhou ZX, et al.Zhonghua Nan Ke Xue. 2007 Feb;13(2):138-42.Zhonghua Nan Ke Xue. 2007.PMID: 17345770Chinese.