Ibrahimov, Firdovsi, Isfendiyar Ismayilov, Oktay Musayev, Kamran Musayev, Shahana Elesgerli, Ferid Aliyev, and Tofik Cahangirov. 2021. “Short and Long-Term Follow-up After Coronary Artery Bypass Surgery or Percutaneous Coronary Intervention Among Elderly Patients With Multivessel Disease”. Annals of Medical Research 28 (9):1626-31. http://www.annalsmedres.org/index.php/aomr/article/view/3898.