Khan, Z., S. Samadi, A. P. Zanjani, and B. Hatemi. “Air Embolism in Sitting Position During Neurosurgical Operations and It’s Prevention: A Narrative Review”. Archives of Anesthesiology and Critical Care, Vol. 5, no. 2, Apr. 2019, pp. 54-61, doi:10.18502/aacc.v5i2.752.