Shahriari, Ali, Maryam Khooshideh, Reyhane Heidari, Shahriar Haddady Abianeh, Mahdi Sheikh, Shahrokh Ghazizadeh, and Javad Rahmati. “The Effect of Trendelenburg Posture on Sensory Block Level in Spinal Anesthesia With Intrathecal Hyperbaric Bupivacaine for Hernia Repair”. Archives of Anesthesiology and Critical Care 1, no. 2 (October 3, 2015): 55-58. Accessed December 5, 2019.