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.
Hill KL, Hunsaker BD, Townsend HG, van Drunen Littel-van den Hurk S, Griebel PJ.Hill KL, et al. Among authors: hunsaker bd.J Am Vet Med Assoc. 2012 May 15;240(10):1231-40. doi: 10.2460/javma.240.10.1231.J Am Vet Med Assoc. 2012.PMID: 22559114Free article.