RT Journal Article SR Electronic T1 β-Endorphin Induced-Antinociception Is Antagonized By Products of Its Post-Translational Processing JF Regional Anesthesia: The Journal of Neural Blockade in Obstetrics, Surgery, & Pain Control JO Reg Anesth Pain Med FD BMJ Publishing Group Ltd SP 14 OP 14 DO 10.1136/rapm-00115550-199318021-00014 VO 18 IS Suppl 2 A1 R. McQuillan A1 G. Lavigne A1 E. Fibuch A1 W. Millington YR 1993 UL http://rapm.bmj.com/content/18/Suppl_2/14.abstract AB