title: Beta-endorphin-like immunoactivity in the plasma of heroin addicts and normal subjects.
mesh_terms: D000328:Adult; D003429:Cross Reactions; D004723:Endorphins / Q000097:blood* / Q000276:immunology; D006556:Heroin Dependence / Q000097:blood*; D006801:Humans; D008297:Male; D011863:Radioimmunoassay; D008083:beta-Lipotropin / Q000276:immunology
chemical_list: D004723:Endorphins; D008083:beta-Lipotropin