Ishfaq, Asim, Muhammad Shahzad, Qasim Bashir, and Syeda Jeelani. “CORRELATION BETWEEN CLINICAL NEUROGENIC CLAUDICATION OUTCOME SCORE (NCOS) AND RADIOLOGICAL GRADING OF LUMBAR SPINAL STENOSIS ON MAGNETIC RESONANCE IMAGING LUMBOSACRAL SPINE”. PAFMJ 70, no. 5 (October 30, 2020): 1506-10. Accessed August 11, 2022. https://pafmj.org/index.php/PAFMJ/article/view/5595.