Minhas, S., Sajjad, A., Kashif, M., Taj, F., Alwadaani, H. and Khurshid, Z. (2019) “Oral Ulcers Presentation in Systemic Diseases: An Update”, Open Access Macedonian Journal of Medical Sciences, 7(19), pp. 3341–3347. doi: 10.3889/oamjms.2019.689.