Treatment for Aging Skin with Multifrequency Radiofrequency

Figure 4

Immunochemical staining for collagen I (a, b), collagen III (c, d), and STRO-1 (e, f). (X100, scale bar = 0.1 mm). (a, c, e) Pretreatment and (b, d, f) posttreatment (increased areas were indicated by black arrows).