Thanyacharoen, T; Chuysinuan, P.; Techasakul, S.; Nooeaid, P.; Ummartyotin, S. Development of a Gallic Acid-Loaded Chitosan and Polyvinyl Alcohol Hydrogel Composite: Release Characteristics and Antioxidant Activity. Int. J. Biol. Macromol. 2018, 107, 363-370.