This corrigendum/addendum supplies corrected statements and proofs of an error by author.
Hereby, authors declare that the corrected name and affiliation of the fifth author is:
Samad EJ Golzari 3
3 Cardiovascular Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
Dr. Mahin Seyedhejazi
Corresponding author
Copyright
Copyright © 2014, Iranian Society of Regional Anesthesia and Pain Medicine (ISRAPM). This is an open-access article distributed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/) which permits copy and redistribute the material just in noncommercial usages, provided the original work is properly cited