European Journal of Pain 2022 Mar 30 doi: 10.1002/ejp.1948. Online ahead of print. Denys Fontaine, Valentin Vielzeuf, Philippe Genestier, Pascal Limeux, Serena Santucci-Sivilotto, Emmanuel Mory, Nelly Darmon, Michel Lanteri-Minet, May Mokhtar, Melanie Laine, Damien Vistoli, DEFI study group Abstract Background: Pain intensity evaluation by self-report is difficult and biased in