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.
Guan Z, Gao Y, Qiao Q, Wang Q, Liu J.Guan Z, et al. Among authors: liu j.Trials. 2021 Jan 7;22(1):36. doi: 10.1186/s13063-020-04983-y.Trials. 2021.PMID: 33413593Free PMC article.
Guan Z, Lv Y, Liu J, Liu L, Yuan H, Shen X.Guan Z, et al. Among authors: liu j, liu l.J Cardiothorac Vasc Anesth. 2016 Dec;30(6):1545-1549. doi: 10.1053/j.jvca.2016.05.011. Epub 2016 May 11.J Cardiothorac Vasc Anesth. 2016.PMID: 27554230
Guan Z, Liu J.Guan Z, et al. Among authors: liu j.BMC Anesthesiol. 2016 Aug 30;16(1):70. doi: 10.1186/s12871-016-0234-x.BMC Anesthesiol. 2016.PMID: 27576558Free PMC article.
Wang J, Guan Z, Li W, Gong Y, Wang H, Zhou T, Liu J.Wang J, et al. Among authors: liu j.Brain Res Bull. 2025 Jan;220:111152. doi: 10.1016/j.brainresbull.2024.111152. Epub 2024 Dec 4.Brain Res Bull. 2025.PMID: 39643249Free article.
Fan QY, Qu QM, Zhang H, Liu JJ, Guo F, Qiao J.Fan QY, et al. Among authors: liu jj.Zhonghua Nei Ke Za Zhi. 2011 Sep;50(9):750-3.Zhonghua Nei Ke Za Zhi. 2011.PMID: 22176962Chinese.