5Jellum E,Andersen A,Lund Larsen P. The JANUS serum band[J].Science of the Total Environment,1993,(139-140):527.
6La Vecch ia C,Ferraroni M,D Avanzo B. Selected micronut rient intake and the risk of gastric cancer[J].Cancer Epidemiology Biomarkers and Prevention,1994,(05):393.