Sources
* Roupe, G. « Skin of the aging human being ». Lakartidningen 98, no 10 (2001): 1091‑95.
** Reilly, David M., et Jennifer Lozano. « Skin collagen through the lifestages: importance for skin health and beauty ». Plastic and Aesthetic Research 8, no 0 (2021): 2. https://doi.org/10.20517/2347-9264.2020.153.
*** Yang, Jane L., Emmanuelle Hodara, Intira Sriprasert, Donna Shoupe, et Frank Z. Stanczyk. « Estrogen Deficiency in the Menopause and the Role of Hormone Therapy: Integrating the Findings of Basic Science Research with Clinical Trials ». Menopause (New York, N.Y.) 31, no 10 (2024): 926‑39. https://doi.org/10.1097/GME.0000000000002407.
**** Luebberding, Stefanie, Nils Krueger, et Martina Kerscher. « Quantification of Age-Related Facial Wrinkles in Men and Women Using a Three-Dimensional Fringe Projection Method and Validated Assessment Scales ». Dermatologic Surgery: Official Publication for American Society for Dermatologic Surgery [et Al.] 40, no 1 (2014): 22‑32. https://doi.org/10.1111/dsu.12377.
***** Jariashvili, Ketevan, Balaraman Madhan, Barbara Brodsky, Ana Kuchava, Louisa Namicheishvili, et Nunu Metreveli. « UV Damage of Collagen: Insights from Model Collagen Peptides ». Biopolymers 97, no 3 (2012): 189‑98. https://doi.org/10.1002/bip.21725.