title: [Evaluation of circadian variation in serum theophylline levels in the sustained-release theophylline treatment of chronic asthma].
mesh_terms: D000328:Adult; D000368:Aged; D001249:Asthma / Q000097:blood / Q000188:drug therapy*; D002908:Chronic Disease; D002940:Circadian Rhythm; D003692:Delayed-Action Preparations; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D013806:Theophylline / Q000008:administration & dosage / Q000097:blood*
chemical_list: D003692:Delayed-Action Preparations; D013806:Theophylline