Phattanaphakdee, W.; Ditipaeng, C.; Uttayarat, P.; Thongnopkoon, T.; Athikomkulchai, S.; Chittasupho, C. Development and Validation of HPLC Method for Determination of Quercetin in Hydrogel Transdermal Patches Loaded With Red Onion Peel Extract: doi.org 10.26538 Tjnpr V6i8.8. TJNPR 2022, 6, 1210-1214.