title: Involvement of opioid peptides in the analgesic, immunosuppressive, and tumor-enhancing effects of stress.
mesh_terms: D000698:Analgesia; D000818:Animals; D004723:Endorphins / Q000502:physiology*; D005260:Female; D006801:Humans; D007108:Immune Tolerance; D009369:Neoplasms / Q000209:etiology*; D051381:Rats; D013315:Stress, Psychological / Q000150:complications / Q000276:immunology / Q000503:physiopathology*
chemical_list: D004723:Endorphins