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.
Usabiaga J, Crespo R, Iza I, Aramendi J, Terrados N, Poza JJ.Usabiaga J, et al. Among authors: crespo r.Spine (Phila Pa 1976). 1997 Sep 1;22(17):1965-9. doi: 10.1097/00007632-199709010-00004.Spine (Phila Pa 1976). 1997.PMID: 9306524
Rico H, Relea P, Crespo R, Revilla M, Villa LF, Arribas I, Usabiaga J.Rico H, et al. Among authors: crespo r.J Bone Joint Surg Br. 1995 Jan;77(1):148-51.J Bone Joint Surg Br. 1995.PMID: 7822374
Crespo E, Sala D, Crespo R, Silvestre A.Crespo E, et al. Among authors: crespo r.Acta Orthop Belg. 2001 Oct;67(4):330-7.Acta Orthop Belg. 2001.PMID: 11725563Review.