Kim, Gwang Ho X-ray as Irradiation Alternative for K562 Feeder Cell Inactivation in Human Natural Killer Cell Expansion. [electronic resource] - Anticancer research Oct 2018 - 5767-5772 p. digital Publication Type: Journal Article ISSN: 1791-7530 Standard No.: 10.21873/anticanres.12915 doi Subjects--Topical Terms: Cell Differentiation--radiation effectsCell Proliferation--radiation effectsCoculture TechniquesFeeder Cells--cytologyHumansK562 CellsKiller Cells, Natural--cytologyX-Rays