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.
Andam KS, Ferraro PJ, Pfaff A, Sanchez-Azofeifa GA, Robalino JA.Andam KS, et al. Among authors: sanchez azofeifa ga.Proc Natl Acad Sci U S A. 2008 Oct 21;105(42):16089-94. doi: 10.1073/pnas.0800437105. Epub 2008 Oct 14.Proc Natl Acad Sci U S A. 2008.PMID: 18854414Free PMC article.
Kalacska M, Sanchez-Azofeifa GA, Rivard B, Calvo-Alvarado JC, Quesada M.Kalacska M, et al.J Environ Manage. 2008 Jul;88(2):348-59. doi: 10.1016/j.jenvman.2007.03.015. Epub 2007 May 1.J Environ Manage. 2008.PMID: 17475393