Related Experiment Video

Updated: Aug 15, 2026

Use of the Operant Orofacial Pain Assessment Device (OPAD) to Measure Changes in Nociceptive Behavior
12:20

Use of the Operant Orofacial Pain Assessment Device (OPAD) to Measure Changes in Nociceptive Behavior

Published on: June 10, 2013

Oxycodone

Eija Kalso1

  • 1University of Helsinki, and Department of Anesthesia and Intensive Care Medicine, Helsinki University Central Hospital, Helsinki, Finland.

Journal of Pain and Symptom Management
|May 24, 2005
PubMed

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