RT Journal Article SR Electronic T1 Slam dunk or air ball? JF Regional Anesthesia & Pain Medicine JO Reg Anesth Pain Med FD BMJ Publishing Group Ltd SP 288 OP 289 DO 10.1136/rapm-2020-101650 VO 46 IS 3 A1 De Q Tran A1 Sebastián Layera A1 Daniela Bravo A1 Iver Cristi-Sánchez A1 Loreley Bermúdez A1 Julián Aliste YR 2021 UL http://rapm.bmj.com/content/46/3/288.abstract AB