Fig. 13From: Novel endoscopic optical diagnostic technologies in medical trial research: recent advancements and future prospectsCopyright 2018 Springer Nature PublishingMultimodal SHG (green, a) and CARS (red, b) images of fresh human colon tissues. Images were taken 50 μm below the sample surface. c The large images are overlaps of the SHG and CARS images. Adapted with permission from Ref. [205].Back to article page