Significant effect of adjuvant chemotherapy on survival in locally advanced non-small cell lung carcinoma (letter). - Le Chevalier,T.; Arriagda,R.; Tarayre,M.; Lacombe Terrier,M.J.; Laplanche,A.; Quoix,E.; Ruffie,P.; Martin,M.; Douillard,J.Y. (J Natl Cancer Inst, 1992)