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Biesiada, A.; Sokół-Łętowska, A.; Kucharska, A. Z. Antioxidant Activity of Calendula Officinalis, Arnica Chamissonis and Echinacea Purpurea As Dependent on the Part of Plant and Method of Material Preparation. Curr. Issues Pharm. Med. Sci. 2025, 24 (3), 147-152. https://doi.org/10.12923/.