Khan, Zahid, Hamid Reza Amiri, and Amjed Mohammed. “Regional Anesthesia for Upper Limb Surgery: A Narrative Review”. Archives of Anesthesiology and Critical Care 5, no. 1 (December 29, 2018): 22-29. Accessed July 18, 2019. http://aacc.tums.ac.ir/index.php/aacc/article/view/144.