Letter: Statistical analysis of treatment with vitamin E.
D002986:Clinical Trials as Topic; D003327:Coronary Disease / Q000188:drug therapy; D006801:Humans; D005996:Nitroglycerin / Q000008:administration & dosage / Q000627:therapeutic use; D010919:Placebos; D013223:Statistics as Topic; D014810:Vitamin E / Q000627:therapeutic use*
D010919:Placebos; D014810:Vitamin E; D005996:Nitroglycerin