Life Sciences · 1989 · 126 citations · 42 references
MedicinePharmacokineticsPharmacologyPain MedicinePharmacodynamicsPsychopharmacologyAnalgesiaAnalgesic PharmacologyDrug ToleranceOpioid AnalgesicsOpioid PharmacologyOpioid TherapyAcute ToleranceAnalgesic EffectsGastrointestinal Transit ControlHormone Release KineticsOpioid PharmacodynamicsOpioid Tolerance MechanismsPulsatile Hormone ReleaseRespiratory Depression Assessment
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Endogenous opioid peptides: multiple agonists and receptors
John A.H. Lord, Angela A. Waterfield, John Hughes et al. · Nature · 1977 · 2.5K citations