Fig. 10.

The comparison of en face LIV images of a sample comprising only fibroblasts and Matrigel (a), pure Matrigel (b), and the Day +3 normal organoid (c). (c) was reprinted from Fig. 4 for reference. By comparing these images, it is evident that the mesh-like structures are fibroblasts. The FOV of en face image is $3\text{mm}\times 3\text{mm}$ .