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.
Baker DA, Pavan-Langston D, Gonik B, Milch PO, Dunkel EC, Berkowitz A, Woodin MB, Philip A, Vander-Mallie RJ, Bobrow MN, et al.Baker DA, et al.Adv Exp Med Biol. 1990;263:71-6. doi: 10.1007/978-1-4613-0601-6_6.Adv Exp Med Biol. 1990.PMID: 2162132