[The analysis of ridge regression about occupational factors of lung cancer in Yunnan tin miners].
D001151:Arsenic; D002681:China; D006801:Humans; D008175:Lung Neoplasms / Q000453:epidemiology*; D008906:Mining; D009784:Occupational Diseases / Q000453:epidemiology*; D011886:Radon; D012044:Regression Analysis; D014001:Tin
D014001:Tin; D001151:Arsenic; D011886:Radon