Histochemical studies on the early development of the human small intestine.
D002454:Cell Differentiation; D004847:Epithelial Cells; D005333:Fetus; D006651:Histocytochemistry; D006801:Humans; D007413:Intestinal Mucosa / Q000196:embryology; D007421:Intestine, Small / Q000166:cytology* / Q000196:embryology*; D008648:Mesoderm / Q000166:cytology