Redirect Notice
 The previous page is sending you to https://openi.nlm.nih.gov/detailedresult?img=PMC2958166_1471-2148-10-295-2&query=&req=4&simResults=PMC2295252_11103_2008_9310_Fig2_HTML.

 If you do not want to visit that page, you can return to the previous page.