title: Predictors of subclinical nodal involvement in clinical stages I and II non-small cell lung cancer--why change the study objectives? Regarding Sawyer et al. IJROBP 43(5):965-970; 1995.
authors.forename: J J
authors.initials: JJ
authors.lastname: Beitler
mesh_terms: D001999:Bronchoscopy; D002289:Carcinoma, Non-Small-Cell Lung / Q000556:secondary*; D006801:Humans; D008175:Lung Neoplasms / Q000473:pathology*; D008207:Lymphatic Metastasis / Q000473:pathology; D009364:Neoplasm Recurrence, Local; D009367:Neoplasm Staging; D012044:Regression Analysis