A comprehensive review of nongenetic prognostic and predictive factors influencing the heterogeneity of outcomes in advanced non-small-cell lung cancer.

66 Overall, two studies reported PS to be a significant predictive factor (borderline significant in Soria et al’s study), 65 , 66 two reported age to be significant, 41 , 66 one reported disease stage to be significant, 66 and one reported previous therapy to be significant. 62 Of the two studies that reported race, one found race to be significant. 66 One of two studies reported smoking statu

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