ROCKVILLE, Md.--(BUSINESS WIRE)--Rexahn Pharmaceuticals, Inc. (NYSE Amex:RNN), a clinical stage biopharmaceutical company developing first-in-class oncology and CNS therapeutics, today announced that it will present at the BIO 2009 International Convention at the Georgia World Congress Center (Room 314, Building A, Level 3) in Atlanta, GA on Wednesday, May 20, 2009 at 3:00 PM ET.
