Haque, Abdul, Shua Nasir, Haris Jameel, Muhammad Absar Anwar, Saqib Basar, and Ahmed Ali. 2016. “The Assessment of Postoperative Levels of Pain With Reference to Validated Protocols at a Hospital in Karachi Pakistan”. Annals of Punjab Medical College 10 (2), 67-70. https://doi.org/10.29054/apmc/2016.288.