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.
Gunawardana SC, Hara M, Bell GI, Head WS, Magnuson MA, Piston DW.Gunawardana SC, et al. Among authors: piston dw.In Vitro Cell Dev Biol Anim. 2005 Jan-Feb;41(1-2):7-11. doi: 10.1290/0412080.1.In Vitro Cell Dev Biol Anim. 2005.PMID: 15926862