RT Journal Article SR Electronic T1 Sensitivity and specificity of SOAPP-SF questionnaire for predicting aberrant urine drug screen JF Regional Anesthesia & Pain Medicine JO Reg Anesth Pain Med FD BMJ Publishing Group Ltd SP rapm-2019-101179 DO 10.1136/rapm-2019-101179 A1 Romman, Adam A1 Doulatram, Gulshan A1 Doctor, Neil A1 Krishnamurthy, Partha YR 2020 UL http://rapm.bmj.com/content/early/2020/02/21/rapm-2019-101179.abstract AB