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.
Fettiplace R, Crawford AC.Fettiplace R, et al.Proc R Soc Lond B Biol Sci. 1978 Dec 4;203(1151):209-18. doi: 10.1098/rspb.1978.0101.Proc R Soc Lond B Biol Sci. 1978.PMID: 33392
Fettiplace R, Crawford AC, Evans MG.Fettiplace R, et al.Ann N Y Acad Sci. 1992 May 22;656:1-11. doi: 10.1111/j.1749-6632.1992.tb25196.x.Ann N Y Acad Sci. 1992.PMID: 1376095No abstract available.