VENLO, The Netherlands, May 7, 2008 (PRIME NEWSWIRE) -- QIAGEN N.V. (Nasdaq:QGEN) (Frankfurt:QIA) today announced that it will present at Baird’s 2008 Growth Stock Conference at 10:05 a.m. ET on Tuesday, May 13, 2008. The conference is being held at the Four Seasons Hotel in Chicago, Illinois.