Thinning Crown - Hair at the top of the scalp begins to thin, often forming a bald spot. In advanced stages, these patterns merge, leaving a horseshoe-shaped hair ring around the sides and back of the ...

Graduate School of Engineering, Tohoku University, Sendai 980-8579, Japan Institute of Multidisciplinary Research for Advanced Materials (IMRAM), Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980 ...