Comparison of 0.2% Bupivacaine with 0.2% Ropivacaine in Femoral Nerve Block for Preoperative Positioning and Postoperative Analgesia in Femur Fractures Journal title: International Journal of Advances in Scientific Research Authors: Natarajan P, Srinivasan S. K., Dhanasekaran C, Sekaran N. K. Subject(s):