Muhammad Kashif Munir, Sana Rehman, Ayesha Aftab, Muhammad Amer Nazir, Akhtar Ali, Naeem Asghar. Impact of Vaccination on Symptomatology among COVID-19 Infection and Re-infection. Pakistan Journal of Medical & Health Sciences [Internet]. 2023 Jan. 11 [cited 2024 Sep. 27];16(12):93. Available from: https://pjmhsonline.com/index.php/pjmhs/article/view/3509