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Psychopharmacology > 2019 > 236 > 9 > 2725-2734
The Receptors > The Opiate Receptors > 457-497
Molecular Pain > 2015 > 11 > 1 > 1-6
Current Pain and Headache Reports > 2014 > 18 > 7 > 1-6
Psychopharmacology > 2002 > 162 > 3 > 255-264
Psychopharmacology > 2001 > 156 > 4 > 445-453