[Topics on the mechanism of hair growth].
D000506:Alopecia Areata / Q000473:pathology / Q000628:therapy; D000818:Animals; D006197:Hair / Q000254:growth & development*; D006801:Humans; D051379:Mice; D008854:Microscopy, Electron; D012627:Sebaceous Glands / Q000033:anatomy & histology*