Antinociceptive Effects of Localized Administration of Opioids Compared with Lidocaine
Haggag G. Hassan, Bengt Akerman, Charles W.T. Pilcher, Hans Renck
Regional Anesthesia: The Journal of Neural Blockade in Obstetrics, Surgery, & Pain Control May 1989, 14 (3) 138-144; DOI: 10.1136/rapm-00115550-198914030-00009