Greening, Janea,*; Dilley, Andrewb; Lynn, Bruceb
aDartford Gravesend and Swanley PCT, NHS Trust and Department of Physiology, University College London, Gower Street, London, WC1E 6BT, UK
bDepartment of Physiology, University College London, Gower Street, London, WC1E 6BT, UK
*Corresponding author. Tel.: +44 020 7679 7334; fax: +44 020 7383 7005.
E-mail: [email protected]
Submitted November 5, 2004; revised January 10, 2005; accepted February 14, 2005.
doi: 10.1016/j.pain.2005.02.023