RT Journal Article SR Electronic T1 Sensory innervation of the chest wall should not be a puzzle JF Regional Anesthesia & Pain Medicine JO Reg Anesth Pain Med FD BMJ Publishing Group Ltd SP rapm-2019-101258 DO 10.1136/rapm-2019-101258 A1 Carlo D Franco YR 2020 UL http://rapm.bmj.com/content/early/2020/01/21/rapm-2019-101258.abstract AB