Regional Anesthesia: The Journal of Neural Blockade in Obstetrics, Surgery, & Pain Control Mar 1995, 20 (2) 121-127; DOI: 10.1136/rapm-00115550-199520020-00007
Karl F.Hampl, Markus C.Schneider, DominiqueThorin, WolfgangUmmenhofer, JürgenDrewe
Regional Anesthesia: The Journal of Neural Blockade in Obstetrics, Surgery, & Pain Control Sep 1995, 20 (5) 363-368; DOI: 10.1136/rapm-00115550-199520050-00001