Emam, M. M.; Shahrbaf, M.; Hatam, M.; Asaadi, S.; OmidBeigi, M. Evaluation of Anti-CCP Positive in Patients With Systemic Lupus Erythematosus Referred to Loghman Hakim Hospital Between 2007-2017; A Descriptive Study. Sch Med Stud J 2020, 2, 24-27.