Epidemiological Study to Describe Non Small Cell Lung Cancer (NSCLC) Clinical Management Patterns in Central Eastern Europe and Russia (Lung-EPICLIN)

Inclusion Criteria: * Confirmed NSCLC diagnosis (e.g.bronchoscopic biopsy or FNAB), all stages, men and women, attending the responsible department of treating this type of patients for the first time between January 1st, 2010 and March 31st, 2010 * For Patient Reported Outcome (PRO) sub-sample: ability to read and write since they will be asked to participate in the PRO part of the study. Selection will not be based on the disease stage of each patient, in order to avoid a selection bias. * Tumour tissue samples (in paraffin-embedded blocks) suitable for EGFR mutation testing available. Exclusion Criteria: * Mixed histology of small cell and non-small cell lung cancer.