Thu, Dang Kim, 		Van Khanh, Nguyen, 		Thi Thanh Binh, Nguyen, 		Hai Yen, Vu, 		Thanh Huyen, Nguyen, AND 		Tuan Hiep, Tran.
" Optimization of a Novel Antioxidant Formulation Containing Phytosome of Standardized Flos Styphnolobii japonici immaturus Extract and Standardized Extracts of Rhizoma Zingiberis, Herba Centellae asiaticae, Polyscias fruticosa Using the D-Optimal Mixture D" <em>VNU Journal of Science: Medical and Pharmaceutical Sciences</em> [Online], (2 February 2026)