Dr. Arun Kumar Poyyamozhi , Dr. Poongodi Santhana kumarasamy , Dr. Velvizhi Gomathinayagam, Dr. Indira Ananthapadmanabasamy. PHENOTYPIC DETECTION AND ANTIMICROBIAL SUSCEPTIBILITY PATTERN OF EXTENDED-SPECTRUM BETA LACTAMASE PRODUCING GRAM-NEGATIVE BACILLI. IJPRT 2026, 16, 891-896.