Fig. 3From: Effects of mechanical stimulation on the reprogramming of somatic cells into human-induced pluripotent stem cellsConfirmation and efficiencies of retro-GFP virus infection of dermal fibroblasts. a Observation of GFP-positive cells in the eight groups at day 7: phase images of virus-infected cells (left row), GFP-positive cells (middle row), and merged images (right row). Scale bar = 100 μm. b FACS analyses and c percentage of cells that were GFP-positive at day 7. *p < 0.05. CP commercial plates, D days, FM flexible membranes, GFP green fluorescent proteinBack to article page