[Drug level monitoring and optimization of therapy (author's transl)].
D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D002675:Child, Preschool; D006801:Humans; D007223:Infant; D008657:Metabolic Clearance Rate; D008875:Middle Aged; D004364:Pharmaceutical Preparations / Q000097:blood*; D013806:Theophylline / Q000097:blood
D004364:Pharmaceutical Preparations; D013806:Theophylline