1. In the large scale lung cancer screening trial utilizing low-dose CT scanning of the lung, what was the approximate reduction in lung cancer-associated mortality?

2. Which of the following immunohistochemical markers is characteristically expressed in lung adenocarcinomas?

3. What portion of heavy smokers can expect to develop lung cancer?

4. As part of the manifestation of paraneoplastic syndromes, PTH is most commonly associated with what lung carcinoma subtype?

5. A 2 cm lung mass is biopsied by CT-guidance.  Based on the findings below, what is the best diagnosis?

6. What is the approximate rate of lung cancer in the United States in individuals who never smoke?