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 136 OP 137 DO 10.3122/jabfm.2.2.136a VO 2 IS 2 A1 Daugherty, Janice E. A1 Horner, Ronnie YR 1989 UL http://www.jabfm.org/content/2/2/136.2.abstract AB