Wren, D In vitro analysis of the origin and maintenance of O-2Aadult progenitor cells. [electronic resource] - The Journal of cell biology Jan 1992 - 167-76 p. digital Publication Type: Journal Article; Research Support, Non-U.S. Gov't ISSN: 0021-9525 Standard No.: 10.1083/jcb.116.1.167 doi Subjects--Topical Terms: AgingAnimalsAnimals, NewbornAstrocytes--cytologyCell CycleCell DifferentiationCell DivisionCerebral Cortex--cytologyKineticsOligodendroglia--cytologyOptic Nerve--cytologyRatsTime Factors