title: Endogenous opioids may mediate the effects of stress on tumor growth and immune function.
mesh_terms: D000818:Animals; D004723:Endorphins / Q000502:physiology*; D005260:Female; D006801:Humans; D007111:Immunity, Cellular; D008297:Male; D008325:Mammary Neoplasms, Experimental / Q000276:immunology; D009374:Neoplasms, Experimental / Q000276:immunology*; D051381:Rats; D011916:Rats, Inbred F344; D011919:Rats, Inbred Strains; D013315:Stress, Psychological / Q000276:immunology*
chemical_list: D004723:Endorphins