%0 Journal Article %T Differential frequencies of p16(INK4a) promoter hypermethylation, p53 mutation, and K-ras mutation in exfoliative material mark the development of lung cancer in symptomatic chronic smokers. %A Kersting, M %A Friedl, C %A Kraus, A %A Behn, M %A Pankow, W %A Schuermann, M %J Journal of clinical oncology : official journal of the American Society of Clinical Oncology %V 18 %N 18 %P 3221-9 %@ 0732-183X %D 2000-10-06 %~ DeepDyve