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.
Martens RJ, Takai S, Cohen ND, Chaffin MK, Liu H, Sakurai K, Sugimoto H, Lingsweiler SW.Martens RJ, et al. Among authors: cohen nd.J Am Vet Med Assoc. 2000 Jul 15;217(2):220-5. doi: 10.2460/javma.2000.217.220.J Am Vet Med Assoc. 2000.PMID: 10909463Free article.
Cohen ND, Chu KK, Stanley SD, Wang N.Cohen ND, et al.Am J Vet Res. 2001 Mar;62(3):320-5. doi: 10.2460/ajvr.2001.62.320.Am J Vet Res. 2001.PMID: 11277194Free article.