Abhishek Patil Ultrasonography as an intra-operative tool for localization of the anatomical level in lumbo-sacral spine surgeries - Bangalore : Dept. of Neurosurgery, 2018 - 113 p. : 30 cm. Subjects--Topical Terms: UltrasonographyLumbo-sacral spine Dewey Class. No.: A6.1 / ABH