CIHR RCT Mentoring program for Harsha Shanthanna: for supervision, learning and exposure in the theoretical frame work, design, analysis and conduct of controlled clinical trials, under the mentorship of Drs Lehana Thabane and Philip J Devereaux, at McMaster University. The award will facilitate supervision and conduct of a randomized control trial on Most Effective Opioid Analgesia in Ambulatory Surgeries-comparing Morphine Vs Hydromorphone, and also the development and design of a large study on Prevention of Chronic Persistent Surgical Pain using Ketamine and Pregabalin in a controlled trial with factorial design. Grant