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Phytochemical Profiling in Different Solvent Systems and DPPH Radical Scavenging Activity of Cinchona pubescens Leaf Extract obtained from Ughelli, Delta State. SAJOLS [Internet]. 2025 Dec. 31 [cited 2026 Feb. 23];3(4):435–442. Available from: https://saheljls.fudutsinma.edu.ng/index.php/saheljls/article/view/568