Charles Akhadelor Unuigbe, Chinem Fumi Unula, Anthony Aiwonegbe, Jeremiah Ogboma Uadia, Isaac Akhigbe, Emesiri Asakitikpi and Osahon Kennedy Ogbeide 2021. Bioactive chemical constituents, acute toxicity and 1,1-diphenyl-2-picrylhydrazyl radical scavenging activity of Polyalthia longifolia root. GSC Biological and Pharmaceutical Sciences. 14, 1 (Jan. 2021), 018–026. DOI:https://doi.org/10.30574/gscbps.2021.14.1.0407.