Toxicity potentials of the nutraceutical Moringa oleifera at supra-supplementation levels - Asare, George Awuku; Gyan, Ben; Bugyei, Kwasi; Adjei, Samuel; Mahama, Razak; Addo, Phyllis; Otu-Nyarko, Lydia; Wiredu, Edwin Kwame; Nyarko, Alexander (Journal of Ethnopharmacology, 2012)