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Updated: Aug 14, 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

Opiate-androgen interactions in drug-induced yawning and penile erections in the rat

H H Berendsen, A J Gower

    Neuroendocrinology
    |January 1, 1986
    PubMed

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