COMPARATIVE EFFICACY AND SAFETY OF TAPENTADOL AND TRAMADOL IN PATIENTS WITH MODERATE TO SEVERE CHRONIC LOW BACK PAIN: A PROSPECTIVE, RANDOMIZED, OPEN-LABELTRIAL AT TERTIARY CARE TEACHING HOSPITAL IN NORTH INDIA Journal title: Journal of Evidence Based Medicine and Healthcare Authors: Seema Gupta, Nusrat Kreem Bhat, Shivani Rani, Farid Hussain, Rajesh Kumar Subject(s):
