Jawad Zahir, Muhammad Shafiq, Muhammad Salman Maqbool, Muhammad Nadeem Khan (2008) “Nitrous Oxide in Oxygen and Air in Oxygen for Perioperative Analgesia : A Comparative study”, Journal of Rawalpindi Medical College, 12(2). Available at: https://journalrmc.com/index.php/JRMC/article/view/748 (Accessed: 27 April 2024).