Ekong, U. S.; Ubulum, P. M. E.; Udoh, D. I.; Nnatu, C. M. Evaluation of the in-Vitro Combination Effects of Some Common Antibiotics on the Antibacterial Activity of Hippocratea Africana Root Extracts in Folkloric Herbal Therapy of Infections and Diseases. NIJOPHASR 2020, 8, 19-24.