Respiratory medicine, cilt.98, sa.7, ss.632-6, 2004 (SCI-Expanded)
Background: Angiogenesis, the formation of new blood vessels from the existing vascular bed, is essential step for the growth and invasion of the primary tumor. Vascular endothelial growth factor (VEGF) is known to play crucial rote in tumor angiogenesis. Increased serum VEGF levels may be associated with poor prognosis in patients with non-small cell lung cancer (NSCLC).