Genji Imokawa, “Hyaluronan in the Skin: Mechanisms of Age-Dependent and UVA-Provoked Down-Regulated Secretion of Hyaluronan by Human Dermal Fibroblasts and Prospective Agents to Ameliorate the Hyaluronan Deficiency in Chronologically Aged Skin and Photo-aged Skin”, HSMADUPDRSHHDFPAAHDCASPS, pp. 1–93, Nov. 2021.