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.
Basali A, Mascha EJ, Kalfas I, Schubert A.Basali A, et al. Among authors: kalfas i.Anesthesiology. 2000 Jul;93(1):48-54. doi: 10.1097/00000542-200007000-00012.Anesthesiology. 2000.PMID: 10861145Free article.
Farag E, Sessler DI, Kovaci B, Wang L, Mascha EJ, Bell G, Kalfas I, Rockwood E, Kurz A.Farag E, et al. Among authors: kalfas i.Anesthesiology. 2012 Apr;116(4):807-15. doi: 10.1097/ALN.0b013e3182475c10.Anesthesiology. 2012.PMID: 22322966Free article.Clinical Trial.
Cata JP, Noguera EM, Parke E, Ebrahim Z, Kurz A, Kalfas I, Mascha E, Farag E.Cata JP, et al. Among authors: kalfas i.J Neurosurg Anesthesiol. 2008 Oct;20(4):256-60. doi: 10.1097/ANA.0b013e31817ffe90.J Neurosurg Anesthesiol. 2008.PMID: 18812889
McLain RF, Bell GR, Kalfas I, Tetzlaff JE, Yoon HJ.McLain RF, et al. Among authors: kalfas i.Spine (Phila Pa 1976). 2004 Nov 15;29(22):2542-7. doi: 10.1097/01.brs.0000144834.43115.38.Spine (Phila Pa 1976). 2004.PMID: 15543071
Kashkoush A, Chakravarthy V, Bain M, Kalfas I, Steinmetz M.Kashkoush A, et al. Among authors: kalfas i.Surg Neurol Int. 2021 May 10;12:221. doi: 10.25259/SNI_271_2021. eCollection 2021.Surg Neurol Int. 2021.PMID: 34084648Free PMC article.