Catherine Chu, Kathryn Zavala, Atefeh Fahimi, Jessica Lee, Qing Xue, Helge Eilers and Mark A Schumacher*
* Corresponding author: Mark A Schumacher schumacm@anesthesia.ucsf.edu
Molecular Pain 2011, 7:44 doi:10.1186/1744-8069-7-44