ERSOY, Y., E. OZEROL, Z. ALTAY, H. OZISIK, and B. FIRAT. “Serum Nitrite And Nitrate Levels In Patients With Cerebrovascular Accident”. Annals of Medical Research, vol. 7, no. 3, May 2021, pp. 0224-8, http://www.annalsmedres.org/index.php/aomr/article/view/2800.