The IASP classification of chronic pain for ICD-11: chronic primary pain

University of Sydney, Royal North Shore Hospital, KU Leuven, Ziekenhuis Oost-Limburg, Maastricht University, Philipps University of Marburg, Queen Mary University of London, Rutgers, The State University of New Jersey, St Vincent's Clinic, Krankenhaus Lindenbrunn, University of Münster, University of Chieti-Pescara, University of Liverpool, Aintree University Hospital, Université Paris Cité, Hôpital Cochin, Inserm, Délégation Paris 5, Karolinska Institutet, Aarhus University, National Yang Ming Chiao Tung University, Taipei Veterans General Hospital, Heidelberg University, University Hospital Heidelberg, University Medical Centre Mannheim