NSCLC Burden of Illness Study

The study procedures will have no effect on the medical care delivered to enrolled patients. Physicians will continue to provide usual medical care to patients. There is no study intervention, and no drug or other intervention will be provided to the site as part of the study. Methodology: the study will consist of two components: * Medical record abstraction. Medical records of eligible patients (both living and deceased) will be reviewed, and data will be extracted for the study. Data collected will include patient demographic and disease characteristics, details of medical care received (including adjuvant treatment), and information about disease recurrence/progression. * Patient survey. Living patients will be asked to participate in a patient survey. Living patients who agree to participate will be administered a brief patient questionnaire to collect information that is not available in the clinical sites' medical records \[e.g., local medical care, patient out-of-pocket expenses, work loss, and health-related quality of life (HRQOL)\]. The site may exclude individual patients from the survey if site staff feel that it would be inappropriate for that individual; the study will not collect patient survey information from the families of deceased patients. Informed consent will be collected from living patients who participate in the patient survey, apart from the abstraction of their medical records. Country-specific requirements will be followed. The medical records of patients (living or deceased) with complete resection of stage IB-IIIA NSCLC between 01 August 2009 and 31 July 2012 will be identified. No vaccine or drug was administered during this study.