title: [Dosage of slow-release theophyllines: analysis of plasma levels].
mesh_terms: D000328:Adult; D000368:Aged; D003692:Delayed-Action Preparations; D004334:Drug Administration Schedule; D006801:Humans; D008875:Middle Aged; D013806:Theophylline / Q000008:administration & dosage* / Q000097:blood
chemical_list: D003692:Delayed-Action Preparations; D013806:Theophylline
vernacular_title: Dosificación de las teofilinas de liberación retardada: análisis de los niveles plasmáticos.