Another study described alterations in miRNA expression in pleomorphic adenomas (PAs), the most frequent benign salivary gland tumours. miR-140 and miR-99b were described among mostly upregulated miRNAs, and let-7a was mostly downregulated [12]. miR-133b, among other miRNAs, target EGFR in different cancer types, especially non-small cell lung cancer [13, 14]. The gene discussed is EGFR; the disease is non-small cell lung carcinoma.