2019. Preliminary Screening of Selected Phytochemicals and Analysis of Essential Trace Elements in Boswellia serrata Roxb, Prosopis africana and Sclerocarya birrea: Plants with Therapeutic Potentials to Treat Hemorrhoids. Journal of Pure & Applied Sciences . 18, 2 (Aug. 2019). DOI:https://doi.org/10.51984/jopas.v18i2.275.