PhereSys Therapeutics Appoints Hal I. Lieberman As President And Chief Operating Officer And Gregory S. Ayers As Chief Financial Officer

EL DORADO HILLS, Calif.--(BUSINESS WIRE)--June 29, 2005--PhereSys Therapeutics Corporation, a national provider of mobile therapeutic apheresis (“TA”) services, announced today the expansion of its senior management team with the appointments of Hal I. Lieberman as President and Chief Operating Officer and Gregory S. Ayers, as Chief Financial Officer.