Ahmed, M.; Ibrahim, G. H.; Adel, M.; Ismail, A.; Almaghraby, A.; Abdelnabi, M. Midkine As an Early Biomarker of Contrast-Induced Acute Kidney Injury in Chronic Kidney Disease Patients Undergoing Percutaneous Coronary Intervention for Acute Coronary Syndrome: A Single-Center Prospective Study. Open Access Maced J Med Sci 2021, 9, 983-989.