Oral theophylline in chronic heart failure.
D002794:Choline / Q000031:analogs & derivatives* / Q000097:blood / Q000627:therapeutic use; D006333:Heart Failure / Q000097:blood / Q000188:drug therapy*; D006334:Heart Function Tests; D006801:Humans; D008297:Male; D013806:Theophylline / Q000031:analogs & derivatives* / Q000097:blood / Q000627:therapeutic use; D013997:Time Factors
C012839:cholinophyllin; D013806:Theophylline; D002794:Choline