Background: The present research aimed to determine the minimum level of theoretical orthopedic learning for trainees and interns. Methods: A cross-sectional analysis was conducted in 3 Universities of Medical Sciences from 2013 to 2014. In total, 25 questions were obtained from third-year medical students (before entering the clinical course) and seventh-year medical internship students (with...

Our study describes the new seventh edition of the TNM system for lung cancer in a national population and its clinical implications. We classified 1,885 operated patients with lung cancer, reported to the Cancer Registry of Norway (Oslo, Norway) from 2001 to 2005, according to the sixth and the seventh edition of the TNM system. We compared survival differences adjusting for known prognostic f...