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Figure 1


Fig. 1. HF organization and the hair cycle. (A,B) The follicle cell layers are depicted in color with appropriate protein marker (boxed). Stem cells (SCs) are in the bulge and progenitor cells are in the matrix. Differentiated hair lineages: Cp, companion cell layer; IRS, inner root sheath; He, Henle's layer; Hu, Huxley's layer; Ci, cuticle of IRS; Ch, cuticle of hair shaft; Co, cortex of hair shaft; Me, medulla. Exogen is hair shaft loss.