We found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleSpinal amino acid release and repeated withdrawal in spinal morphine tolerant rats.AuthorsIbuki T; Marsala M; Masuyama T; Yaksh TLPublicationBritish journal of pharmacology, 2003, Vol 138, Issue 4, p689ISSN0007-1188Publication typearticleDOI10.1038/sj.bjp.0705102