RT Journal Article SR Electronic T1 Breast surgery without general anesthesia: is paravertebral blockade sufficient? JF Regional Anesthesia & Pain Medicine JO Reg Anesth Pain Med FD BMJ Publishing Group Ltd SP 460 OP 460 DO 10.1136/rapm-2020-101741 VO 46 IS 5 A1 Joanne Guay MD YR 2021 UL http://rapm.bmj.com/content/46/5/460.1.abstract AB