PT - JOURNAL ARTICLE ED - , TI - ASRA 44th Annual Regional Anesthesiology and Acute Pain Medicine Meeting AID - 10.1136/rapm-2019-ASRASpringabs DP - 2019 Aug 01 TA - Regional Anesthesia & Pain Medicine PG - 821--836 VI - 44 IP - 8 4099 - http://rapm.bmj.com/content/44/8/821.short 4100 - http://rapm.bmj.com/content/44/8/821.full SO - Reg Anesth Pain Med2019 Aug 01; 44