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Opioid receptor expression in the rat gastrointestinal tract: a quantitative study with comparison to the brain

Opioid EpidemicHealth SciencesOpioid Receptor ExpressionNeurophysiologyAddictionPain MedicinePhysiologyRat Gastrointestinal TractMedicineNeuropharmacologyQuantitative StudyNeuroscienceOpioid OverdoseNervous SystemPharmacologyOpioid Use DisorderPain Research