Fig. 5From: Microfluidic device for enhancement and analysis of osteoblast differentiation in three-dimensional cell cultures ACTAB-normalized mRNA expression levels of osteoprogenitor, preosteoblast, and osteoblast markers in the monolayer and spheroids were measured by qPCR. n ≥ 3, * p = 0.0459, ** p = 0.0078, *** p = 0.0003, **** p < 0.0001Back to article page