Edwards, Christopher L.a,b,*; Fillingim, Roger B.c; Keefe, Francisa,b
aPain and Palliative Care Center, Duke University Medical Center, 932 Morreene Road, Rm 166, 27713, Durham, NC, USA
bDepartment of Psychiatry, Duke University Medical Center, DUMC-3847, Durham, NC, USA
cPublic Health Services and Research, University of Florida College of Dentistry and North Florida South Georgia VA Health System, USA
*Correspondence author. Tel.: +1-919-681-3090; fax: +1-919-681-7347
E-mail: [email protected]
Received 30 July 2001; received in revised form 6 August 2001; accepted 13 August 2001.