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Evaluation of cell morphology of keratinocytes in co-culture. a–b AK in R&G with AF 6:1 and (c) 10:1 or (d) with lethally irradiated 3T3 cells. (e) AK with AF in EpiLife + EDGS 6:1 and (f) AK in R&G with AF 3:1. a–e AK grew as mosaic-like colonies with AF or 3T3 cells in culture.
