EVALUATION OF IN-VITRO VASORELAXANT EFFECT (POTENTIAL ANTIHYPERTENSIVE) OF KIGELIA AFRICANA FRUIT METHANOL EXTRACT ON POTASSIUM CHLORIDE AND PHENYLEPHRINE INDUCED TENSION IN WISTAR RAT AORTA. FJS. 2020;4(3):470-475. doi:10.33003/fjs-2020-0403-414