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.
Keuffel EL, Stevens M, Gunnarsson C, Rizzo J, Sessler DI, Maheshwari K.Keuffel EL, et al. Among authors: stevens m.J Med Econ. 2019 Apr;22(4):383-389. doi: 10.1080/13696998.2019.1576695. Epub 2019 Feb 19.J Med Econ. 2019.PMID: 30698059Free article.
Keuffel EL, Rizzo J, Stevens M, Gunnarsson C, Maheshwari K.Keuffel EL, et al. Among authors: stevens m.J Med Econ. 2019 Jul;22(7):645-651. doi: 10.1080/13696998.2019.1591147. Epub 2019 Mar 25.J Med Econ. 2019.PMID: 30838899Free article.
Gregory A, Stapelfeldt WH, Khanna AK, Smischney NJ, Boero IJ, Chen Q, Stevens M, Shaw AD.Gregory A, et al. Among authors: stevens m.Anesth Analg. 2021 Jun 1;132(6):1654-1665. doi: 10.1213/ANE.0000000000005250.Anesth Analg. 2021.PMID: 33177322Free PMC article.