RT Journal Article SR Electronic T1 Re: Ultrasound-guided bilateral rectus sheath block with and without dexmedetomidine in pediatric umbilical hernia repairs: a retrospective interrupted time series analysis JF Regional Anesthesia & Pain Medicine JO Reg Anesth Pain Med FD BMJ Publishing Group Ltd SP 741 OP 741 DO 10.1136/rapm-2020-102086 VO 46 IS 8 A1 Visoiu, Mihaela YR 2021 UL http://rapm.bmj.com/content/46/8/741.1.abstract AB