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

Beatrice Korwisi, Ginea Hay, Nadine Attal, Qasim Aziz, Michael I Bennett, Rafael Benoliel, Milton Cohen, Stefan Evers, Maria Adele Giamberardino, Stein Kaasa, Eva Kosek, Patricia Lavand'homme, Michael Nicholas, Serge Perrot, Stephan Schug, Blair H Smith, Peter Svensson, Johan W S Vlaeyen, Shuu-Jiun Wang, Rolf-Detlef TreedeWinfried Rief, Antonia BarkeVis 2 andreVis mindre