RT Journal Article SR Electronic T1 Intrathecal Morphine in OB JF The Journal of the American Board of Family Practice JO J Am Board Fam Med FD American Board of Family Medicine SP 138 OP 139 DO 10.3122/jabfm.2.2.138a VO 2 IS 2 A1 From, Robert P. YR 1989 UL http://www.jabfm.org/content/2/2/138.2.abstract AB