A COMPARISION OF FENTANYL AND NALBUPHINE IN ATTENUATING HAEMODYNAMIC RESPONSE TO DIRECT LARYNGOSCOPY AND ENDOTRACHEAL INTUBATION- A STUDY OF 90 CASES, DR NEHAL CHANDRA, DR PARASMANI, DR VIDYAMANI VALECHA, DR A.B. VYAS, INTERNATIONAL JOURNAL OF PURE MEDICAL RESEARCH : Volume-5 | Issue-1 | January-2020