Rout Dipti Au. Role of image - guided navigation system in endoscopic dacryocystorhinostomy in patients of chronic dacrryocystitis Rout Dipti Au.; Dr. H. C. Taneja Gu.; Dr. G. K. Das Gu.; Dr. Vipin Arora Gu. - 2012 - 62 p. cm. Standard No.: 5935 Source: Theses Subjects--Topical Terms: HEAD - DISEASES