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.
Babu R, Thomas S, Hazzard MA, Lokhnygina YV, Friedman AH, Gottfried ON, Isaacs RE, Boakye M, Patil CG, Bagley CA, Haglund MM, Lad SP.Babu R, et al. Among authors: lad sp.J Neurosurg Spine. 2014 Oct;21(4):502-15. doi: 10.3171/2014.5.SPINE13283. Epub 2014 Jul 4.J Neurosurg Spine. 2014.PMID: 24995600