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Methadone
Narcotics
Analgesics, Opioid
Buprenorphine
Narcotic Antagonists
Naltrexone
N-Methyl-3,4-methylenedioxyamphetamine
Morphine
Naloxone
Baclofen
Opioid-Related Disorders
Substance Withdrawal Syndrome
Drug Dose Response Relationship
Pain Threshold
Treatment Outcome
Rats
Motor Activity
Drug Tolerance
Body Temperature
Cross-Over Studies
Co-Publications
30
20
13
8
7
6
5
4
3
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