Simons, Laura E.*; Sieberg, Christine B.; Kaczynski, Karen J.
Division of Pain Medicine, Department of Anesthesiology, Perioperative and Pain Medicine, Children's Hospital Boston, USA
Department of Psychiatry, Harvard Medical School, Boston, USA
*Corresponding author. Tel.: +1 617 919 4677; fax: +1 617 730 0759.
E-mail address:[email protected]
Submitted March 24, 2011; revised June 14, 2011; accepted June 15, 2011.