C. Ogueke, C. Owuamanam, N. Ihediohanma, and J. Iwouno, “Probiotics and Prebiotics: Unfolding Prospects for Better Human Health”, Pak. J. Nutr., vol. 9, no. 9, pp. 833–843, Aug. 2010, doi: 10.3923/pjn.2010.833.843.