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 Roth Capital Partners 19th Annual OC Conference on Tuesday, February 20, 2007 at 9:30 a.m. PT. The conference will be held at the Ritz Carlton Hotel in Laguna Niguel, California from February 19 -- 22, 2007.
