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Cx37 expression continues in virtually all iRin37-F cells throughout a 21-day proliferation assay. A and C: cells stained with Hoechst dye. B and D: Cx37 expression for the same cells. Images in A and B were taken 24 h after induction, and in C and D, 21 days after induction. Note the increase in cell number between days 1 and 21. Scale bar represents 9 μm.
