RT Journal Article SR Electronic T1 Ultrasound-guided superior cluneal nerves block: raising the bar JF Regional Anesthesia & Pain Medicine JO Reg Anesth Pain Med FD BMJ Publishing Group Ltd SP 771 OP 771 DO 10.1136/rapm-2019-100619 VO 44 IS 8 A1 Philip Cornish YR 2019 UL http://rapm.bmj.com/content/44/8/771.abstract AB