RT Journal Article SR Electronic T1 Epidural Anesthesia JF The Journal of the American Board of Family Practice JO J Am Board Fam Med FD American Board of Family Medicine SP 137 OP 137 DO 10.3122/jabfm.2.2.137 VO 2 IS 2 A1 Nesse, Robert E. YR 1989 UL http://www.jabfm.org/content/2/2/137.1.abstract AB