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.
Rigotti NA, Chang Y, Tindle HA, Kalkhoran SM, Levy DE, Regan S, Kelley JHK, Davis EM, Singer DE.Rigotti NA, et al. Among authors: chang y.Ann Intern Med. 2018 May 1;168(9):613-620. doi: 10.7326/M17-2048. Epub 2018 Mar 27.Ann Intern Med. 2018.PMID: 29582077Free PMC article.Clinical Trial.
Atlas SJ, Keller RB, Chang Y, Deyo RA, Singer DE.Atlas SJ, et al. Among authors: chang y.Spine (Phila Pa 1976). 2001 May 15;26(10):1179-87. doi: 10.1097/00007632-200105150-00017.Spine (Phila Pa 1976). 2001.PMID: 11413434
Dedier J, Singer DE, Chang Y, Moore M, Atlas SJ.Dedier J, et al. Among authors: chang y.Arch Intern Med. 2001 Sep 24;161(17):2099-104. doi: 10.1001/archinte.161.17.2099.Arch Intern Med. 2001.PMID: 11570938