Enas Ahmed Elgendy, Ahmed Mohammad Ali Elgendy, Marwa Sabry, Mohamed Kamal Salama, and Tamer Aboshady. “The Effect of Interleukin-6 and Procalcitonin Level on the Development of Oral Manifestation in Hospitalized COVID-19 Patients”. Journal of the Pakistan Medical Association, vol. 73, no. 4, May 2023, pp. S195-S199, doi:10.47391/JPMA.EGY-S4-39.