KDR and non-small cell lung carcinoma: Due to variations in antibody selection, specificity data, degree of immunopathological characterization of NSCLC tissues, and varied sub-cellular localization of VEGFR2 in these studies, it is imperative to validate the pattern and distribution of VEGFR2 in NSCLC tumor cells and its prognostic significance in larger studies using reliable assays on well characterized tumor tissues, as reported here.