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.
Kunitz M, Northrop JH.Kunitz M, et al.J Gen Physiol. 1934 Mar 20;17(4):591-615. doi: 10.1085/jgp.17.4.591.J Gen Physiol. 1934.PMID: 19872802Free PMC article.
Kunitz M, Northrop JH.Kunitz M, et al.J Gen Physiol. 1936 Jul 20;19(6):991-1007. doi: 10.1085/jgp.19.6.991.J Gen Physiol. 1936.PMID: 19872978Free PMC article.
Northrop JH, Kunitz M.Northrop JH, et al. Among authors: kunitz m.J Gen Physiol. 1932 Nov 20;16(2):295-311. doi: 10.1085/jgp.16.2.295.J Gen Physiol. 1932.PMID: 19872706Free PMC article.