This screenshot made on Friday, Feb. 4, 2011 shows Dr. Edward Zuckerberg's Facebook page. Dr. Edward Zuckerberg, father of Facebook CEO Mark Zuckerberg, said in a radio interview Friday that Mark's early exposure to computers helped inspire his interest and expertise in technology. Dr. Zuckerberg also said he uses Facebook to promote his dental practice and spends about an hour a day on the site. He also still does Mark's "routine dental care." (AP Photo/Facebook) NO SALES; EDITORIAL USE ONLY
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