Abdullah Naeem Syed, Dilshad Alam Khan, Rehan Moinuddin Shaikh, Ahsan Qureshi, Muhammad Shahzad Anwar, Muhammad Sharif Shahid 2023. Evaluation of Nasolacrimal Duct Obstruction in Chronic Rhinosinusitis Patients: A Clinical Study. Pakistan Journal of Medical & Health Sciences. 17, 12 (Dec. 2023), 675. DOI:https://doi.org/10.53350/pjmhs020231712675.