Neoadjuvant chemotherapy in non-small cell lung cancer: Long term follow-up in a 73 patient trial with IIIA staging and clinically apparent mediastinal node involvement: RJ Gralla, MG Kris, N Martini, and KMW Pisters. Memorial Sloan-Kettering Cancer Center, New York, NY, and the Ochsner Clinic, New Orleans, LA USA