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.
Williams KA, Gonzalez-Fernandez M, Hamzehzadeh S, Wilkinson I, Erdek MA, Plunkett A, Griffith S, Crooks M, Larkin T, Cohen SP.Williams KA, et al. Among authors: griffith s.Pain Med. 2011 Aug;12(8):1142-53. doi: 10.1111/j.1526-4637.2011.01184.x. Epub 2011 Jul 12.Pain Med. 2011.PMID: 21749636Clinical Trial.
Cohen SP, Williams KA, Kurihara C, Nguyen C, Shields C, Kim P, Griffith SR, Larkin TM, Crooks M, Williams N, Morlando B, Strassels SA.Cohen SP, et al.Anesthesiology. 2010 Aug;113(2):395-405. doi: 10.1097/ALN.0b013e3181e33ae5.Anesthesiology. 2010.PMID: 20613471Clinical Trial.