Fig4B. [doi:10.1186/1471-2164-8-19] [PMID:17233888] Copyright: This image is from Jin H; Tan S; Hermanowski J; Bohm S; Pacheco S; McCauley JM; Greener MJ; Hinits Y; Hughes SM; Sharpe PT; Roberts RG, BMC Genomics 2007;8:19, an open-access article distributed under the terms of the Creative Commons Attribution License