The secondary objectives include: 1.To obtain the epidemiologic data of ALK positive in unselected Chinese patients with NSCLC.2.To describe demographic, socioeconomic [such as age, gender, race/ethnicity, geographic location (including rural/urban area), pathologic parameters, education, family income, National Reimbursement Drug List (NRDL) or Provincial Reimbursement List (PRDL)], and clinical characteristics of NSCLC patients with ALK positive.