00474nam a22001457a 4500 SGT 617.63 C21G Gulati, Garima Comparison of Biopsy samples of Leukoplakia obtained by Surgical Excision and Laser Excision A Histopathological and Scanning Electron microscope Study SGT University 2021 54 Oral Medicine and Radiology Oral Medicine and Radiology, OMR ddc TH 23538 23538