Exploring topical atorvastatin hyalurosomal gel as an adjuvant for reducing systemic corticosteroid dosage: a randomized clinical trial in severe oral lichen planus patients. - Elsayed M; Essawy A; Ismail RM; Gamil Y; Hamed MG; Elsabaawy D; Abdelhakeem E; Hegazy D; Abd-Elal RMA (Drug delivery and translational research, 2026)