Allah Noor, Khalil Ahmed Orakzai, Azam Khan, Mamoor Khan, Sohail Khan, Mubassir Ullah 2022. Frequency of Septal Perforation in Sub-Mucous Resection of Nasal Septum. Pakistan Journal of Medical & Health Sciences. 16, 04 (May 2022), 498. DOI:https://doi.org/10.53350/pjmhs22164498.