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.
Bao W, Liu P, Qiu Z, Yu L, Hang J, Gao X, Zhou X.Bao W, et al. Among authors: yu l.Chin Med J (Engl). 2015 Jan 5;128(1):39-45. doi: 10.4103/0366-6999.147805.Chin Med J (Engl). 2015.PMID: 25563311Free PMC article.Clinical Trial.
Wei W, Yu L, Lu H, Wang L, Shi C, Ma W, Huang Y, Qiu Z.Wei W, et al. Among authors: yu l.Respiration. 2009;77(3):259-64. doi: 10.1159/000142942. Epub 2008 Jul 3.Respiration. 2009.PMID: 18596372
Ma W, Yu L, Wang Y, Li X, Lü H, Qiu Z.Ma W, et al. Among authors: yu l.Cough. 2009 Sep 25;5:7. doi: 10.1186/1745-9974-5-7.Cough. 2009.PMID: 19781068Free PMC article.
Yu L, Wei WL, Lü HJ, Qiu ZM.Yu L, et al.Zhonghua Jie He He Hu Xi Za Zhi. 2009 Jun;32(6):414-7.Zhonghua Jie He He Hu Xi Za Zhi. 2009.PMID: 19957774Chinese.
Wei W, Yu L, Wang Y, Li X, Qiu Z, Wang L, Liu B, Liang S, Lü H, Qiu Z.Wei W, et al. Among authors: yu l.Respirology. 2010 Jul;15(5):830-6. doi: 10.1111/j.1440-1843.2010.01785.x. Epub 2010 Jun 9.Respirology. 2010.PMID: 20546197Clinical Trial.