title: Theophylline concentrations in serum, plasma, and whole blood compared.
mesh_terms: D000328:Adult; D001769:Blood; D001800:Blood Specimen Collection / Q000379:methods; D002851:Chromatography, High Pressure Liquid; D005260:Female; D006400:Hematocrit; D006801:Humans; D008297:Male; D008875:Middle Aged; D010949:Plasma; D013806:Theophylline / Q000097:blood*
chemical_list: D013806:Theophylline