Just over two years http://www.twinforms.com/products/|ibuprofen ibuprofen use  "The focus should now be about the sustainability andwhether the title has legs," Arvind Bhatia, a Sterne Ageeanalyst, said. "Indications are it probably does, as critics andconsumers love it, retailers are supporting it in a big way andthe installed base of current-generation consoles is very large.But we'll have to see in coming weeks." (Reporting by Malathi Nayak; Editing by Gary Hill, Leslie Adlerand Ken Wills)