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Device loading. A) An empty device is seen on the left and a dye-loaded device is on the right. B) Mesenchyme/epithelia microtissue. C) Fluorescent staining/imaging in situ in the left image GMSM-K RFP can be seen next to non-RFP GMSM-K. In the image on the right, GMSM-K GFP-SHH are shown next to standard GMSM-K.
