TY - JOUR AN - 7 AU - Fritscher-Ravens,A. AU - Bohuslavizki,K.H. AU - Brandt,L. TI - Mediastinal lymph node involvement in potentially resectable lung cancer: comparison of CT, positron emission tomography, and endoscopic ultrasonography with and without fine-needle aspiration. JO - Chest PY - 2003 VL - 123 SP - 442-451 M2 - 442 DO - 10.1378/chest.123.2.442 ER -