title: Letter: Muscular performance and vitamin E in cystic fibrosis.
mesh_terms: D002986:Clinical Trials as Topic; D003550:Cystic Fibrosis / Q000188:drug therapy* / Q000503:physiopathology; D006801:Humans; D009132:Muscles / Q000503:physiopathology*; D009135:Muscular Diseases / Q000188:drug therapy* / Q000503:physiopathology; D010919:Placebos; D014810:Vitamin E / Q000097:blood / Q000627:therapeutic use*
chemical_list: D010919:Placebos; D014810:Vitamin E