D. I. A. Y. Abobaker, M. F. Bader, and P. D. A. M. Rizk, “Evaluation the Level of Human Epididymal Protein 4 (HE4) in Patients of Suspicious Ovarian Mass with Low Serum Level of Cancer Antigen 125 (CA125)”, aljameai, no. 37, Dec. 2023.