RT Journal Article SR Electronic T1 Ultrasound-guided lateral, mid-shaft approach for proximal sciatic nerve block JF Regional Anesthesia & Pain Medicine JO Reg Anesth Pain Med FD BMJ Publishing Group Ltd SP rapm-2019-100657 DO 10.1136/rapm-2019-100657 A1 Mario Tedesco A1 Giuseppe Sepolvere A1 Mario Cibelli YR 2019 UL http://rapm.bmj.com/content/early/2019/06/07/rapm-2019-100657.abstract AB