In this Oct. 28, 2010 photo, model Natasha Smahlei works at the Caitlin Raymond International Registry exhibit during the New England Business Expo in Worcester, Mass. Models were hired by UMass ... more 
In this Oct. 28, 2010 photo, model Natasha Smahlei works at the Caitlin Raymond International Registry exhibit during the New England Business Expo in Worcester, Mass. Models were hired by UMass Memorial Health Care in Worcester to draw potential bone marrow donors for the bone marrow registry. Officials are investigating why the lab over-billed insurance companies and whether samples were taken from people who didn't qualify. less 
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Associated Press | Photo By The Telegram & Gazette, Paul Kapteyn
Thu, Dec 23, 2010 2:18 PM EST