SnoRD33, snoRD66, and snoRD76 were found up-regulated in plasma from NSCLC patients [161], while snoRD33, snoRD66, snoRD42, and snoRD78 were investigated in sputum samples of patients with the same type of cancer [162,272]. This evidence concerns the gene SNORD33 and non-small cell lung carcinoma.