[Determination of caffeine and dimethylxanthines in biological fluids and tissues by high performance liquid chromatography].
D000818:Animals; D001826:Body Fluids / Q000032:analysis*; D002110:Caffeine / Q000032:analysis*; D002851:Chromatography, High Pressure Liquid; D005260:Female; D011247:Pregnancy; D051381:Rats; D013806:Theophylline / Q000031:analogs & derivatives / Q000032:analysis*; D014018:Tissue Distribution
D002110:Caffeine; D013806:Theophylline