SAN DIEGO & ATHENS, Greece--(BUSINESS WIRE)--Cytori (NASDAQ:CYTX) sold its first European Union StemSource® Cell Bank as part of an agreement with Biohellenika (www.biohellenika.gr). Biohellenika, the leading provider of cord blood stem cell banking services in Greece, will be the exclusive provider of the StemSource Cell Bank cryopreservation services in Greece, which is one of the largest markets for cell banking in Europe.