“Study the Relationship Between Selenium , Vitamin B6 , B12 and Hyperhomocysteine  in Patients With Cardiovascular Disease in Thi-Qar Governorate”. University of Thi-Qar Journal of Science 10, no. 1 (June 28, 2023): 95–100. Accessed December 25, 2024. http://mail.jsci.utq.edu.iq/index.php/main/article/view/957.