Yoon, Hyun-Sun, Se-Rah Lee, and Jin Ho Chung. “Long-Term Topical Oestrogen Treatment of Sun-Exposed Facial Skin in Post-Menopausal Women Does Not Improve Facial Wrinkles or Skin Elasticity, But Induces Matrix Metalloproteinase-1 Expression”. Acta Dermato-Venereologica 94, no. 1 (April 25, 2013): 4–8. Accessed August 19, 2024. https://medicaljournalssweden.se/actadv/article/view/6248.