Hasan, M.S. and Salman, S.A. 2023. Salivary Soluble CD40 Ligand Levels and Their Relationship to Periodontal Markers in Patients with Periodontitis and/or Obesity: An Observational Case-Control Study. Al-Rafidain Journal of Medical Sciences ( ISSN 2789-3219 ). 5, (Aug. 2023), 127–133. DOI:https://doi.org/10.54133/ajms.v5i.174.