↑ Sherratt, Jonathan A. (2010). "Mathematical Modelling of Scar Tissue Formation". Department of Mathematics, Heriot-Watt University. สืบค้นเมื่อ 20 August 2010. This is composed of the same main protein (collagen) as normal skin, but with differences in details of composition. Most crucially, the protein fibres in normal tissue have a random (basketweave) appearance, while those in scar tissue have pronounced alignment in a single direction.
