THE WOODLANDS, Texas--(BUSINESS WIRE)--Opexa Therapeutics, Inc. (NASDAQ:OPXA), a company involved in the development and commercialization of cell therapies, today announced that David McWilliams, president and chief executive officer, will present at the First Annual Maxim Group Growth Conference on Thursday, September 20, 2007 at 1:00 p.m. ET. The conference will be held on that day at the Grand Hyatt Hotel in New York City.
