RT Journal Article SR Electronic T1 Erector spinae plane block dilemma JF Regional Anesthesia & Pain Medicine JO Reg Anesth Pain Med FD BMJ Publishing Group Ltd SP rapm-2020-101310 DO 10.1136/rapm-2020-101310 A1 Abdelghafour Elkoundi A1 Alae El Koraichi YR 2020 UL http://rapm.bmj.com/content/early/2020/02/10/rapm-2020-101310.abstract AB