http://www.aagbi.org/
AAPM - American Academy of Pain Medicine
http://www.painmed.org/
AAROI - Italian Association of Anesthesiologists and Intensive Care Physicians
http://www.aaroi.it/
ACPA - American Chronic Pain Association
http://www.theacpa.org/
American Academy of Pain Management
http://www.aapainmanage.org/
APF - American Pain Foundation
http://www.painfoundation.org/
APS - American Pain Society
http://www.ampainsoc.org/
ASA - American Society of Anesthesiologists
http://www.asahq.org/
ASRA - American Society of Regional Anesthesia
http://www.asra.com/
Austrian Anaesthesia
http://www.anesthesia.at/
CAS - Canadian Anesthesiologists Society
http://www.cas.ca/
Collège Francais des Anesthèsistes Rèanimateurs
http://www.cfar.org/
Danish Society of Anaesthesia
http://www.dasaim.dk/
ESA - European Society of Anaesthesiologists (ESA)
http://www.euroanesthesia.org/
ESRA - European Society of Regional Anaesthesia
http://www.esraeurope.org/
IASP - International Association for the Study of Pain
http://www.iasp-pain.org/
ISRANEST - Israel Society of Anaesthesiology
http://www.isranest.org.il/english/
Royal College of Anaesthesists
http://www.rcoa.ac.uk/
SGAR - Schweizerische Gesellschaft für Anästhesiologie und Reanimation (=SSAR)
http://www.sgar-ssar.ch/