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Wistar Rats
Rats
Morphine
Histamine
Scopolamine
Muscarinic Antagonists
Naloxone
Nicotine
Pyrilamine
Analgesics, Opioid
GABA Agonists
Histamine H2 Antagonists
Narcotic Antagonists
Drug Dose Response Relationship
Memory
Avoidance Learning
Animal Behavior
Injections, Intraventricular
Anxiety
Morphine Dependence
Co-Publications
13
6
5
3
2
1
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