Salim, F., Rehman, H. U., Khurshid, T., & Sharif, A. (2015). FREQUENCY OF DIFFICULT AND FAILED INTUBATION IN APPARENTLY NORMAL PATIENTS UNDERGOING ELECTIVE SURGERY: Difficult and Failed Intubation in Elective Surgery. Pakistan Armed Forces Medical Journal, 65(4), 494-497. https://pafmj.org/PAFMJ/article/view/992