Muhammad Usman Anwar, Talha Abbas, Nabeel Choudhary, Rida Zahid, Adeel-Ur-Rehman, Mohammad Faheem Shaikh, “Early Pain Outcome of Open Lumbar Discectomy Versus Endoscopic Lumbar Discectomy”, Pakistan Journal of Medical & Health Sciences, vol. 17, no. 11, p. 297, Nov. 2023.