Berger, J.,  D. F. Gutierrez,  A. Shbeeb, L. Ngai,  Z. Meliksetyan, and V. Zelman. 2016. “Potential Cost Savings of Off-Site Regional Anesthesia for Minor Orthopedic Surgical Procedures”. Pain Medicine 1 (3):49-54. https://painmedicine.org.ua/index.php/pnmdcn/article/view/23.