PT - JOURNAL ARTICLE AU - Brian Williams TI - Esmolol: a viable option for current antinociceptive clinical research AID - 10.1136/rapm-2019-100450 DP - 2019 Mar 01 TA - Regional Anesthesia & Pain Medicine PG - rapm-2019-100450 4099 - http://rapm.bmj.com/content/early/2019/02/28/rapm-2019-100450.short 4100 - http://rapm.bmj.com/content/early/2019/02/28/rapm-2019-100450.full