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 Indian J Med Microbiol  
 

Figure 4 (A-D): Midsagittal images of sphenoidal sinus demonstrating subdorsal type (A), dorsal type (B), occipital type (C), and combined type (D)

Figure 4 (A-D): Midsagittal images of sphenoidal sinus demonstrating subdorsal type (A), dorsal type (B), occipital type (C), and combined type (D)