title: [Serum levels and spirometric response with sustained release theophylline].
mesh_terms: D000328:Adult; D000628:Aminophylline / Q000097:blood; D001249:Asthma / Q000097:blood* / Q000188:drug therapy / Q000503:physiopathology; D003692:Delayed-Action Preparations; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D012129:Respiratory Function Tests; D013806:Theophylline / Q000097:blood*
chemical_list: D003692:Delayed-Action Preparations; D000628:Aminophylline; D013806:Theophylline
vernacular_title: Niveles séricos y respuesta espirométrica con una teofilina de liberación sostenida.