Generation and transplantation of a bioengineered salivary gland germ. A. Phase contrast images of the ED 13.5 submandibular gland germ, tissues, dissociated cells, and the bioengineered submandibular gland germ. E, epithelial cells; M mesenchymal cells. Scale bar, 200 μm. B. Schematic presentation of the transplantation procedure using the interepithelial tissue connecting plastic method with the bioengineered salivary gland germ. Reproduced with permission from: .