Çelik, Sevinç, Mustafa Yavuz Samancı, Hikmet Demirkol, and Suat Erol Çelik. 2010. “Perimesencephalic (Pretruncal) Nonaneurysmal Subarachnoid Hemorrhage: Case Report”. Journal of Nervous System Surgery 3 (1). İstanbul, TR:28-30. https://sscdergisi.org/index.php/sscd/article/view/106.