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Circadian variations in β-endorphin concentrations in pituitary and in some brain nuclei of the adult male rat

Hypothalamic CircuitsPituitary GlandAdult Male RatNeurophysiologyNeuroanatomyBrain NucleiPhysiologyMedicineNeuroendocrinologyNeuroendocrine MechanismNeuroscienceCircadian VariationsNervous SystemEndocrinologyCircadian RhythmChronobiologySocial SciencesCircadian Biology