Farrukh Ayub, Rub Nawaz Khan, Nauman Anwar Rana, Syed Fazal E Karim Faisal, Rehan Haider, Irtiza Ahmed Bhutta. “Comparison of Effects of Nalbuphine and Tramadol on Cardiovascular Response to Tracheal Intubation in Patients Undergoing Emergency Appendectomy”. Pakistan Journal of Medical & Health Sciences, vol. 17, no. 04, May 2023, p. 312, doi:10.53350/pjmhs2023174312.