Investigation of Antioxidant Compositions and Antioxidative Activities of Ethanol Extract of Alstonia boonei Stem Bark. NJPR [Internet]. 30 september 2020 [citerad 05 juni 2026];16(1):71-80. Tillgänglig vid: https://ojshostng.com/index.php/njpharmaceuticalsciences/article/view/895