Department of Clinical Oral Physiology, School of Dentistry, Aarhus University, Vennelyst Boulevard 9, DK-8000 Aarhus, Denmark
*Tel.: +45 8942 4191.
E-mail: [email protected]
Submitted December 30, 2010; revised January 6, 2011; accepted January 7, 2011.
doi: 10.1016/j.pain.2011.01.015
