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  Indian J Med Microbiol
 

Figure 1: Endoscopic anatomical levels. Level I (superior compartment): V trigeminal nerve, dandy vein (DV). Level II (middle fi eld compartment): VII facial nerve, VIII cochleovestibular nerve. Level III (inferior compartment): IX glossopharyngeal nerve, X vagus nerve .

Figure 1: Endoscopic anatomical levels. Level I (superior compartment): V trigeminal nerve, dandy vein (DV). Level II (middle fi eld compartment): VII facial nerve, VIII cochleovestibular nerve. Level III (inferior compartment): IX glossopharyngeal nerve, X vagus nerve .