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.
Zhang L, Chen ZM, Shen Z, Li SX, Xu D, Tang LF.Zhang L, et al. Among authors: chen zm.Zhonghua Er Ke Za Zhi. 2011 Oct;49(10):750-4.Zhonghua Er Ke Za Zhi. 2011.PMID: 22321180Chinese.
Wang Y, Xu D, Li S, Chen Z.Wang Y, et al.Pediatr Int. 2012 Apr;54(2):293-7. doi: 10.1111/j.1442-200X.2011.03415.x.Pediatr Int. 2012.PMID: 22507158Review.No abstract available.
Chen LL, Cheng YG, Chen ZM, Li SX, Li XJ, Wang YS.Chen LL, et al. Among authors: chen zm.Zhonghua Er Ke Za Zhi. 2012 Mar;50(3):211-5.Zhonghua Er Ke Za Zhi. 2012.PMID: 22801206Chinese.
Liu J, Xu Y, Chen Z, Xu X, Lu M, Wang Y, Zhou Y, Gu W.Liu J, et al.Clinics (Sao Paulo). 2012 Aug;67(8):977-80. doi: 10.6061/clinics/2012(08)22.Clinics (Sao Paulo). 2012.PMID: 22948471Free PMC article.No abstract available.