1. [1] Glasscock A, Shambaugh E. Surgery of the ear. 17th edn. Ontario: BC Decker Publisher 2006.
2. Detection of AmpC β Lactamases in Gram-negative Bacteria;Gupta;J Lab Physicians,2014
3. [3] Kumar KGR, Navya S, Basavarajappa KG. A study of bacterial profile and antibiotic susceptibility pattern of chronic suppurative otitis media among patients attending a tertiary care centre, Davangere. Scholars Journal of Applied Medical Sciences 2014;2(5B):1606- 12.
4. [4] CLSI. M100 Performance standards for antimicrobial susceptibility testing. 27th edn. 2016.
5. [5] Loy AH, Tan AL, Lu PK. Microbiology of chronic suppurative otitis media in Singapore. Singapore Medical Journal 2002;43(6):296-9.