Soheil Etemadi, Behnam Mahmoodiyeh, Shima Rajabi, Alireza Kamali,Maryam Milanifard. “Evaluation Effectiveness and Safety of Hyperbaric and Isobaric Bupivacaine for Spinal Anesthesia for Noncesarean Delivery Surgery: A Systematic Review and Meta-Analysis”. Annals of the Romanian Society for Cell Biology, Apr. 2021, pp. 2417 -, https://annalsofrscb.ro/index.php/journal/article/view/2775.