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. 2017 Jan 27;7:41286. doi: 10.1038/srep41286

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TEM showing arrangement of presumptive collagen fibrils viewed surrounding the cells. Collagen fibrils are highlighted with arrows in (A–C) a presumptive packed lamella with stacked collagen fibril is shown in (D). Scale bars A-0.5 μm, B-200 nm, C-0.5 μm, D-200 nm.