Mousa J. Humesh, AbduL-Monaim H.M. AL-Samarraie, and Zainab A.L. AL-Samarraie, “Apelin Levels and its Relationship with a Number of Electrolytes in Patients with Myocardial Infarction”, Tikrit J. Pure Sci., vol. 23, no. 3, pp. 16–22, May 2018.