Nkono Ya Nkono, Barnabé Lucien, Selestin Dongmo Sokeng, Paul Désiré Dzeufiet Djomeni, Frida Longo, and Pierre Kamtchouing. “Subchronic Toxicity of Aqueous Extract of Alstonia Boonei De Wild. (apocynaceae) Stem Bark in Normal Rats”. International Journal of Pharmacology and Toxicology 3, no. 1 (May 25, 2015): 5–10. Accessed May 3, 2024. https://sciencepubco.com/index.php/IJPT/article/view/4625.