title: Preparation of anti-theophylline antiserum and determination of theophylline in patient blood by radioimmunoassay method.
mesh_terms: D000818:Animals; D006801:Humans; D007106:Immune Sera; D008722:Methods; D011817:Rabbits / Q000276:immunology; D011863:Radioimmunoassay; D013806:Theophylline / Q000097:blood* / Q000276:immunology
chemical_list: D007106:Immune Sera; D013806:Theophylline