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 BH, Salam N, Cheng J, Li HQ, Yang JY, Zha DM, Zhang YQ, Ai MJ, Hozzein WN, Li WJ.Zhang BH, et al. Among authors: li wj, li hq.PLoS One. 2016 Aug 18;11(8):e0161069. doi: 10.1371/journal.pone.0161069. eCollection 2016.PLoS One. 2016.PMID: 27537546Free PMC article.