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.
Engel M, Castrillon-Oberndorfer G, Hoffmann J, Egermann M, Freudlsperger C, Thiele OC.Engel M, et al. Among authors: hoffmann j.J Craniofac Surg. 2012 Sep;23(5):1407-9. doi: 10.1097/SCS.0b013e31825e4b18.J Craniofac Surg. 2012.PMID: 22948629