title: Theophylline determination by "high-pressure" liquid chromatography.
mesh_terms: D002851:Chromatography, High Pressure Liquid / Q000379:methods; D006801:Humans; D013056:Spectrophotometry, Ultraviolet / Q000379:methods; D013806:Theophylline / Q000097:blood*
chemical_list: D013806:Theophylline