In separate announcements, Marrow-Tech Inc. and CellularTransplants Inc. said they have changed their corporate names.

Marrow-Tech of La Jolla, Calif., has changed its name toAdvanced Tissue Sciences Inc. Its NASDAQ symbol will changeto "ATISA" from "MAROA." The company is developingproducts involving growth of human tissue outside the body.

Privately held Cellular of Providence, R.I., has becomeCytoTherapeutics Inc. The company is developing encapsulatingtechnology to deliver therapeutic molecules.

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