(A) group of islets (top islet −6356 μm2, bottom islet −54,291 μm2, left islet −6700 μm2) included in the category 1000–10,000 μm2 and 10,000–100,000 μm2 (field of view 20X), (B) islet example (41,708 μm2) included in the category of 10,000 μm2–100,000 μm2 (field of view 20X), (C) sample of islets (top islet −386 μm2, bottom islet −8814 μm2) included in the category <1000 μm2 and 1000–10,000 μm2 (field of view 40X), (D) islet (20,368 μm2) belonging in the catgory 10,000–100,000 μm2 (field of view 20X), (E) example of islet (6282 μm2) included in the category 1000–10,000 μm2 (field of view 40X), (F) islet sample (8805 μm2) included in the category 10,000–100,000 μm2 (field of view 40X), (G) group of islets (top-left islet −14,930 μm2, bottom islet −136 μm2, bottom-right islet −8402 μm2) ranging from 1000-10,000 μm2 to 10,000–100,000 μm2 (field of view 20X), (H) example of islet (29,975 μm2) included in the category 10,000–100,000 μm2 (field of view 20X), (I) islet percentage by size, (K) mean islet area (dark-gray on right axis) and mean islet perimeter (light-gray on left axis) by slice (B1–4).