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Mutations in the p53 tumor suppressor gene and the K-ras oncogene have been frequently found in sputum and bronchoalveolar lavage (BAL) samples of lung cancer patients and other patients prior to presenting clinical symptoms of lung cancer, suggesting that they may provide useful biomarkers for early lung cancer diagnosis. However, the detection of these gene mutations in sputum and BAL samples has...
Lung cancer mortality rate in nonsmoking women in Xuan Wei (XW) County is the highest in China. The XW lung cancer rate is associated with exposure to coal smoke, containing high concentrations of polycyclic aromatic hydrocarbons (PAHs), in unvented homes. Here we investigated codon 12 K-ras mutations in lung tumors or sputum samples from 102 XW lung cancer patients (41 nonsmoking women and 61 smoking...
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