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delta Opioid Receptors
mu Opioid Receptors
Oligopeptides
Tetrahydroisoquinolines
Opioid Peptides
Dipeptides
Receptors, Opioid
Narcotic Antagonists
Analgesics, Opioid
Structure-Activity Relationship
Rats
Guinea Pigs
Mouse
Brain
Vas Deferens
Synaptosomes
Ileum
Binding, Competitive
Radioligand Assay
Amino Acid Sequences
Co-Publications
62
60
43
29
28
22
21
19
17
14
13
12
11
10
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