Khosa, F. I.; Ahmed, T.; Tahir, U.; Raza Rizvi, S. K.; Sadiq, A.; Shazia Abid, S. A. Original Articles PROPHYLACTIC LOW DOSE KETAMINE IN PREVENTING PERIOPERATIVE SHIVERING DURING SPINAL ANESTHESIA IN ORTHOPEDIC PATIENTS: A PROSPECTIVE RANDOMIZED DOUBLE-BLIND STUDY. JAMDC 2021, 3, 114-119.