Fig. 2.

(a) En face OCT-intensity and (b) LIV images of a normal alveolar organoid measured 3 days after the organoid establishment. The images were extracted from approximately $100\text{μ}\mathrm{m}$ below the sample surface and the FOV is $1\text{mm}\times 1\text{mm}$ . The cystic and mesh-like structures are expected to be alveoli and fibroblasts, respectively.