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.
Takayama S, McDonald JC, Ostuni E, Liang MN, Kenis PJ, Ismagilov RF, Whitesides GM.Takayama S, et al. Among authors: mcdonald jc.Proc Natl Acad Sci U S A. 1999 May 11;96(10):5545-8. doi: 10.1073/pnas.96.10.5545.Proc Natl Acad Sci U S A. 1999.PMID: 10318920Free PMC article.