Lianna M. Johnson, Magnolia Bostick, Xiaoyu Zhang, Edward Kraft, Ian Henderson, Judy Callis, Steven E. Jacobsen
Curr Biol.
Author manuscript; available in PMC 2007 Apr 10.Published in final edited form as: Curr Biol. 2007 Feb 20; 17(4): 379–384. Published online 2007 Jan 18. doi: 10.1016/j.cub.2007.01.009