Safi, S., Manzoor, S., Nasir, U., Ullah, F., Durrani, N. and Taj, F. 2021. Aphthous Ulceration – Risk Factors Among Dental Students at Khyber College of Dentistry, Peshawar. Journal of Gandhara Medical and Dental Science. 8, 3 (Jul. 2021), 47–52. DOI:https://doi.org/10.37762/jgmds.8-3.195.