The Regional Anesthesia “Learning Curve”: What Is the Minimum Number of Epidural and Spinal Blocks to Reach Consistency?
Dan J. Kopacz, Joseph M. Neal, Julia E. Pollock
Regional Anesthesia: The Journal of Neural Blockade in Obstetrics, Surgery, & Pain Control May 1996, 21 (3) 182-190; DOI: 10.1136/rapm-00115550-199621030-00002