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Updated: Sep 23, 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

Comparative effects of opioid peptides on respiration and analgesia in rats

J Flórez, A Pazos

    Life Sciences
    |September 20, 1982
    PubMed

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