Genji Imokawa. (2021). 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. 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, 1–93. https://doi.org/10.9734/bpi/mono/978-93-5547-382-0