Figure 1From: Development of a serum-free co-culture of human intestinal epithelium cell-lines (Caco-2/HT29-5M21)Semi-thin cross sections (toluidine blue staining) (A) and electronic microscopy ultra-thin sections (B-D) of Caco-2/HT29-5M21 co-culture monolayer (seeding ratio 3:1). Mv: microvilli.Back to article page