Hussain, S., M. Rauf, S. Aleem, K. Rehman, M. A. Khan, S. Liaqat, N. Muhammad, and M. adnan Khan. “Clinical Characteristics and Oral Manifestations of COVID-19: A Cross-Sectional Study from Peshawar, Pakistan”. KHYBER MEDICAL UNIVERSITY JOURNAL, vol. 15, no. 4, Dec. 2023, pp. 235-40, doi:10.35845/kmuj.2023.23396.