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.
Morris M, Handcock MS, Hunter DR.Morris M, et al.J Stat Softw. 2008;24(4):1548-7660. doi: 10.18637/jss.v024.i04.J Stat Softw. 2008.PMID: 18650964Free PMC article.
Handcock MS, Morris M.Handcock MS, et al. Among authors: morris m.Comput Math Organ Theory. 2009 Dec 1;15(4):294-302. doi: 10.1007/s10588-008-9055-x.Comput Math Organ Theory. 2009.PMID: 26612976Free PMC article.