Dr. Muhammad Safdar Baig; Prof. Dr. Rubeena Zakar; Assist Prof. Dr. Muhammad Tariq Karim. M.S.P.H.; Dr. Muhammad Zeeshan Baig. Periodontal Disease As Risk Factor For Severity Of Covid-19 Infection: A Hospital Base Comparison Study. Kurd. Stud. 2024, 12, 1187-1193.