Authors: Ted J Kaptchuk; John M Kelley; Lisa A Conboy; Roger B Davis; Catherine E Kerr; Eric E Jacobson; Irving Kirsch; Rosa N Schyner; Bong Hyun Nam; Long T Nguyen; Min Park; Andrea L Rivers; Claire McManus; Efi Kokkotou; Douglas A Drossman; Peter Goldman; Anthony J Lembo Journal: BMJ Date: 2008-04-03