Systematic review and meta-analysis of the effect of warming local anesthetics on injection pain.
Ann Emerg Med. 2011 Jul;58(1):86-98.e1. doi: 10.1016/j.annemergmed.2010.12.001. Epub 2011 Feb 12.
Ann Emerg Med. 2011.
PMID: 21316812
Review.