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Endogenous Opioid-Induced Neuroplasticity of Dopaminergic Neurons in the Ventral Tegmental Area I...

Endogenous Opioid-Induced Neuroplasticity of Dopaminergic Neurons in the Ventral Tegmental Area Influences Natural and Opiate Reward  Journal of Neuroscience

Retrograde ejaculation - Symptoms & causes - Mayo Clinic

Retrograde ejaculation - Symptoms & causes  Mayo Clinic