Prognostic significance of p21 protein expression in patients with pulmonary squamous cell carcinoma following induction chemotherapy.

Background: The prognostic value of p21 protein expression in lung cancer patients has been assessed. However, its significance in those with pulmonary squamous cell carcinoma following induction chemotherapy (IC) remains unclear. We studied on patients who did or did not undergo IC (NIC) to elucidate the prognostic value of p21 protein expression.