title: Effects of recurrent postnatal pain-related stressful events on opiate receptor-endogenous ligand system.
mesh_terms: D000367:Age Factors; D000818:Animals; D001665:Binding Sites; D001921:Brain / Q000033:anatomy & histology / Q000378:metabolism; D008024:Ligands / Q000378:metabolism; D008297:Male; D009270:Naloxone / Q000378:metabolism; D009619:Nociceptors / Q000502:physiology*; D010146:Pain / Q000503:physiopathology*; D051381:Rats; D011957:Receptors, Opioid / Q000502:physiology*; D013312:Stress, Physiological / Q000503:physiopathology*
chemical_list: D008024:Ligands; D011957:Receptors, Opioid; D009270:Naloxone