subject area of MULTIPLE ENDOGENOUS OPIATE AND NONOPIATE ANALGESIA SYSTEMS - EVIDENCE OF THEIR EXISTENCE AND CLINICAL IMPLICATIONS Journal Article MUSCARINIC CHOLINERGIC MEDIATION OF OPIATE AND NON-OPIATE ENVIRONMENTALLY INDUCED ANALGESIAS Journal Article
narrower concept Alkaloids - N-Methylscopolamine PubMed MeSh Term Alkaloids - Scopolamine PubMed MeSh Term
