Hair neogenesis.
D000818:Animals; D002454:Cell Differentiation; D003670:Deer; D005350:Fibroma / Q000473:pathology; D006168:Guinea Pigs; D006197:Hair / Q000196:embryology / Q000254:growth & development*; D006801:Humans; D006965:Hyperplasia; D008394:Marsupialia; D051379:Mice; D009024:Morphogenesis; D009508:Nevus, Pigmented / Q000473:pathology; D011817:Rabbits; D051381:Rats; D012756:Sheep; D012867:Skin / Q000254:growth & development; D012878:Skin Neoplasms / Q000473:pathology; D012879:Skin Physiological Phenomena