[Protective effects of selenium, zinc and copper on lung cancer].
Chen
Q
Q
D000328:Adult; D000368:Aged; D002294:Carcinoma, Squamous Cell / Q000032:analysis / Q000517:prevention & control*; D003300:Copper / Q000032:analysis*; D005260:Female; D006801:Humans; D008168:Lung / Q000032:analysis; D008175:Lung Neoplasms / Q000032:analysis / Q000517:prevention & control*; D008297:Male; D008875:Middle Aged; D012643:Selenium / Q000032:analysis*; D012907:Smoking / Q000009:adverse effects; D015032:Zinc / Q000032:analysis*
D003300:Copper; D012643:Selenium; D015032:Zinc