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9. [Effect of the level of "tar" in tobacco smoke on the risk of the occurrence of malignant tumors]. Zaridze DG. Eksp Onkol; 1989 Aug; 11(1):3-6. PubMed ID: 2647462 [Abstract] [Full Text] [Related]
18. Changes in tobacco consumption and lung cancer risk: evidence from studies of individuals. Shopland DR. IARC Sci Publ; 1990 Nov; (103):77-91. PubMed ID: 2279799 [No Abstract] [Full Text] [Related]