Acute Pain

• Minsk City Gynecology Hospital Department of Gynecology — Minsk, Belarus
• "Multiprofile Hospital for Active Treatment - Doverie" AD, Sofia Department of Gynecology — Sofia, Bulgaria
• Victoria Hospital - London Health Sciences Centre — London, Ontario, Canada
• Bajcsy-Zsilinszky Korhaz Szuleszet-Nogyogyaszati Osztaly — Budapest, Hungary

• Centro Superior de Estudios Universitarios La Salle — Madrid, Spain

• Wake Forest University Baptist Medical Center — Winston-Salem, North Carolina, United States

• Montefiore Medical Center — The Bronx, New York, United States

• Montefiore Medical Center — The Bronx, New York, United States

Not specified

Not specified

• The Jerzy Kukuczka Academy of Physical Education — Katowice, Poland

• Washington University School of Medicine — St Louis, Missouri, United States

• Lotus Clinical Research — Pasadena, California, United States