CO-PRODUCTION OF EXTENDED-SPECTRUM BETA-LACTAMASES AND METALLO BETA-LACTAMASES AMONG MULTI-DRUG RESISTANT GRAM-NEGATIVE BACTERIA ISOLATES COLLECTED FROM TERTIARY HOSPITALS IN OYO STATE, NIGERIA. FJS [Internet]. 2020 Sep. 23 [cited 2025 Sep. 17];4(3):230-41. Available from: http://162.254.38.185/index.php/fjs/article/view/188