Akyoldas, G., O. Kalemci, A. Ersen Danyeli, O. Acis, C. Kizmazoglu, K. Ur, and M. Nuri Arda. “The Investigation of Vasospastic Effect of Hemostatic Matrix Used in Intracranial Operations on Cerebral Arteries”. Annals of Medical Research, vol. 26, no. 8, May 2021, pp. 1670-4, http://annalsmedres.org/index.php/aomr/article/view/1613.