Fig. 2From: A lithium-containing biomaterial promotes chondrogenic differentiation of induced pluripotent stem cells with reducing hypertrophyEffects of L2C4S4 extracts on proliferation of iPSCs. a Immunofluorescence of Ki67 in different groups. b The ratio of positive cells of Ki67. Scale bar = 200um. CTR: mTeSR1 medium without extracts. Data presented as mean ± SEMBack to article page