Clinical results obtained from a new controlled release theophylline preparation.
D000293:Adolescent; D000328:Adult; D000368:Aged; D003692:Delayed-Action Preparations; D005260:Female; D006801:Humans; D008173:Lung Diseases, Obstructive / Q000188:drug therapy*; D008297:Male; D008875:Middle Aged; D013806:Theophylline / Q000008:administration & dosage / Q000097:blood / Q000627:therapeutic use*
D003692:Delayed-Action Preparations; D013806:Theophylline