IASP

In May 1973, University of Washington anesthesiology professor John J. Bonica convened an interdisciplinary group of pain researchers and clinicians to discuss the need for a professional organization dedicated to pain research and management. Dr. Bonica’s vision was to provide an egalitarian, interdisciplinary, and international forum to improve knowledge about pain, improve the education of health-care providers, and improve the care of patients.  IASP was incorporated on May 9, 1974.

http://iasp-pain.org