Zhao et al. reported that CDKN2B loss is associated with poor overall survival of patients with lung squamous cell carcinoma15, and in NSCLC patients, loss of chromosome 9p (encompassing the 9p21.3 locus where CDKN2A and CDKN2B are located) has also been associated with poor survival outcome16,17. The gene discussed is CDKN2A; the disease is non-small cell lung carcinoma.