RT Journal Article SR Electronic T1 Three-Dimensional Thoracic Epidural Educational Model JF Regional Anesthesia & Pain Medicine JO Reg Anesth Pain Med FD BMJ Publishing Group Ltd SP 100 OP 101 DO 10.1097/AAP.0000000000000686 VO 43 IS 1 A1 Johnson, Martha Claire A1 Portnova, Sasha A1 Lester, Matthew YR 2018 UL http://rapm.bmj.com/content/43/1/100.2.abstract AB