Surgical Treatment of Superior Sulcus Tumors: Results and Prognostic Factors - Demir, A.; Sayar, A.; Kocaturk, C. I.; Gunluoglu, M. Z.; Akýn, H.; Metin, M.; Cansever, L.; Olcmen, A.; Dincer, S. I.; Bedirhan, M. A.; Gurses, A. (The Thoracic and Cardiovascular Surgeon, 2009)