Classification algorithm for the International Classification of Diseases-11 chronic pain classification: development and results from a preliminary pilot evaluation.

Korwisi B, Hay G, Attal N, Aziz Q, Bennett MI, Benoliel R, Cohen M, Evers S, Giamberardino MA, Kaasa S, Kosek E, Lavand'homme P, Nicholas M, Perrot S, Schug S, Smith BH, Svensson P, Vlaeyen JWS, Wang SJ, Treede RD, Rief W, Barke A.